BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Stellarhound//city-ics-v1//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Stellarhound — Sisters, Oregon dark-sky nights
X-WR-CALDESC:Nights when the Moon leaves Sisters\, Oregon's dark hours esse
 ntially moon-free (moon interference ≤ 15%\, the deep-sky standard used 
 across stellarhound.com). Deterministic moon & darkness geometry via Skyfi
 eld + JPL DE440s (city-ics-v1). Cloud cover is not knowable this far ahead
  — check the live forecast at https://stellarhound.com/dark-sites/sister
 s-oregon?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows
 &utm_content=sisters-oregon closer to each window.
REFRESH-INTERVAL;VALUE=DURATION:P1W
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-08-07@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20260807
DTEND;VALUE=DATE:20260820
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-09-05@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20260905
DTEND;VALUE=DATE:20260918
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-10-04@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261004
DTEND;VALUE=DATE:20261018
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-11-02@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261102
DTEND;VALUE=DATE:20261116
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-12-02@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261202
DTEND;VALUE=DATE:20261215
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2026-12-31@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261231
DTEND;VALUE=DATE:20270114
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-01-29@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270129
DTEND;VALUE=DATE:20270212
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-02-27@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270227
DTEND;VALUE=DATE:20270313
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-03-29@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270329
DTEND;VALUE=DATE:20270411
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-04-27@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270427
DTEND;VALUE=DATE:20270510
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-05-28@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270528
DTEND;VALUE=DATE:20270609
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-06-28@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270628
DTEND;VALUE=DATE:20270710
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-07-28@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270728
DTEND;VALUE=DATE:20270809
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-08-26@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270826
DTEND;VALUE=DATE:20270908
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-09-24@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270924
DTEND;VALUE=DATE:20271007
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-10-23@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271023
DTEND;VALUE=DATE:20271105
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-11-21@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271121
DTEND;VALUE=DATE:20271204
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-sisters-oregon-2027-12-21@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271221
DTEND;VALUE=DATE:20280101
SUMMARY:Dark-sky window · 11 moon-free nights
DESCRIPTION:11 nights with essentially moon-free dark hours at Sisters\, Or
 egon (nightly moon interference ≤ 15% — Moon below the horizon for nea
 rly all of astronomical darkness\, or too thin to matter).\n\nCloud is the
  one thing no calendar can promise. When a window gets close\, check the l
 ive per-night forecast: https://stellarhound.com/dark-sites/sisters-oregon
 ?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_con
 tent=sisters-oregon\n\nRule city-ics-v1 — deterministic moon/darkness ge
 ometry\, Skyfield + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/sisters-oregon?utm_source=calendar&
 utm_medium=ics&utm_campaign=dark-site-windows&utm_content=sisters-oregon
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR