Comet, Montana
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46.3108° N112.1700° WBortle 2Denver

Comet Photography Guide

Ghost Town in Jefferson County, Montana

  • Bortle 2 sky
  • Sunset azimuth 236°–306°
  • Clearest: July
  • Milky Way Apr–Aug
Photo: Plazak (talk) · CC BY-SA 3.0 · source

Comet — a ghost town in Jefferson County, Montana — is a popular subject for landscape photographers. The nearest town is Boulder, about 9.1 km (5.7 mi) away (Comet lies NNW of town).

Comet is a ghost town located approximately twenty miles (32 kilometers) south-southwest of Helena, Montana, United States. It is reached by following High Ore Road north from Interstate 15. The remains of the town cover about thirty-five acres and consist of an ore hopper, a large ore processing building, several other company buildings, and numerous houses and other private structures. High Ore Creek runs through the center of the property and separates the mine buildings from the town proper. The town is abandoned except for a single active residence; although it sits on private grazing land, it is open to public access.From the Wikipedia article “Comet, Montana”, licensed under CC BY-SA 4.0.
Nearest town
Boulder
9.1 km (5.7 mi)
Sky darkness
Bortle 2
Typical truly dark site
Clearest month
July
36% cloud
Milky Way peak
June
2.7 h window
Golden hour (Oct)
6:03 PM
sunset 6:44 PM

Light at Comet

Live
Sunrise
7:53 AM
Sunset
6:35 PM
Golden hour AM
7:35 AM – 8:35 AM
Golden hour PM
5:53 PM – 6:54 PM
Blue hour AM
7:23 AM – 7:35 AM
Blue hour PM
6:54 PM – 7:05 PM
Full darkness
8:15 PM – 6:14 AM
Moon
Waxing Gibbous · 71%
Moonrise / set
4:11 PM / 1:33 AM
Day length
10h 41m
Sunrise azimuth
104°
Sunset azimuth
256°
000306091215182124
NightTwilightBlue hourGolden hourDaylight

Times in America/Denver. Golden hour = sun −4° to +6°; blue hour = −6° to −4°.

Clouds at sunrise & sunset

NWS

Hourly sky cover from the National Weather Service. 20–60% cloud often gives the most colorful sunrises and sunsets.

Sunrise & sunset directions

At Comet the sunrise point swings a long way through the year: about 54° (NE) at the June solstice and 124° (SE) in late December. Sunset moves from 306° (NW) in June to 236° (SW) in December, and the midday sun climbs to 67° in summer but only 20° in winter.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)7:33 AM89° E7:41 PM271° W44°12h 09m
June solstice (Jun 21)5:37 AM54° NE9:25 PM306° NW67°15h 48m
September equinox (Sep 22)7:16 AM89° E7:28 PM271° W44°12h 12m
December solstice (Dec 21)8:10 AM124° SE4:45 PM236° SW20°8h 36m

Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.

Golden hour & blue hour by month

Weathered wood and rusted metal show texture best in low-angle light; overcast skies suit interiors and moody black-and-white work.

Month (15th)Blue hour startsSunriseGolden hour endsGolden hour startsSunsetBlue hour endsDaylight
January7:35 AM8:08 AM8:57 AM4:21 PM5:09 PM5:43 PM9h 01m
February7:02 AM7:33 AM8:15 AM5:12 PM5:55 PM6:26 PM10h 22m
March7:12 AM7:42 AM8:22 AM6:55 PM7:35 PM8:05 PM11h 52m
April6:11 AM6:43 AM7:23 AM7:36 PM8:16 PM8:48 PM13h 34m
May5:21 AM5:56 AM6:40 AM8:12 PM8:55 PM9:31 PM14h 59m
June4:58 AM5:37 AM6:23 AM8:37 PM9:23 PM10:02 PM15h 46m
July5:15 AM5:52 AM6:37 AM8:33 PM9:18 PM9:56 PM15h 26m
August5:55 AM6:28 AM7:10 AM7:58 PM8:40 PM9:13 PM14h 11m
September6:37 AM7:08 AM7:47 AM7:02 PM7:42 PM8:12 PM12h 35m
October7:16 AM7:46 AM8:28 AM6:03 PM6:44 PM7:14 PM10h 57m
November6:58 AM7:31 AM8:17 AM4:11 PM4:58 PM5:30 PM9h 27m
December7:31 AM8:06 AM8:57 AM3:53 PM4:44 PM5:18 PM8h 38m

Local time (America/Denver), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.

Milky Way & night sky

From Comet, the Milky Way core is visible in a dark sky from April through August. June gives the longest window (about 2.7 hours on a moonless night), and the core peaks around 15° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—-5°—
FebruaryBelow 10° in darkness—6°—
March5:45 AM – 5:55 AM0.211°SSE → SSE
April3:47 AM – 4:47 AM1.014°SSE → S
May1:41 AM – 3:31 AM1.815°SSE → S
June12:08 AM – 2:48 AM2.715°SSE → SSW
July11:48 PM – 1:38 AM1.815°S → SSW
August10:39 PM – 11:29 PM0.814°SSW → SSW
September9:26 PM – 9:36 PM0.211°SSW → SSW
OctoberBelow 10° in darkness—6°—
NovemberBelow 10° in darkness—-4°—
DecemberBelow 10° in darkness—-20°—

Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.

Estimated sky darkness: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.83 mag/arcsec². Aurora needs roughly Kp 4.5+ to show low on the northern horizon here.

Weather & best season

Long-term NASA satellite data for this area show July as the clearest month (about 36% average cloud cover) and December as the cloudiest (75%). July is the warmest month and December the coldest, which matters for gear, snow access and how long batteries last at night.

Average cloud cover (%)

JanFebMarAprMayJunJulAugSepOctNovDec
JanFebMarAprMayJunJulAugSepOctNovDec
High °F485269768692989488816645
Low °F-25-28-2871526343120-4-25-31
Precip. (in)1.31.71.72.32.93.41.31.41.71.71.61.6

Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.

Photography tips for this ghost town

  • For interiors with windows, blend two exposures (one for inside, one for the view) instead of relying on HDR alone.
  • Old buildings under the Milky Way make strong night images in dark rural skies.
  • Look for details: door hinges, faded signs, square nails and window frames tell the story.
  • Leave everything as you found it; removing artifacts from public land is illegal.
  • Respect private property and closures: many ghost towns are on private land or protected historic sites — never enter unstable buildings.
  • Tell someone where you're going in remote areas and carry the ten essentials.

Season: High-elevation mining towns are reachable mostly from June to October; desert ghost towns are best in spring and autumn.

Suggested gear: Wide-angle lens, Tripod, Headlamp, Sturdy boots. Work out exposures with the depth of field, ND filter and NPF rule calculators.

Permits, drones & access

Private property: Many ghost towns sit on private land or protected historic sites. Respect signs, never enter unstable buildings and leave artifacts in place.

Nearby photo spots

Other locations within 25 km of Comet, closest first.

Campgrounds nearby (Recreation.gov)

FAQ

When is the best time to photograph Comet?
July has the clearest skies on average; june is best for the milky way core. For light, plan around the first and last hour of sun. High-elevation mining towns are reachable mostly from June to October; desert ghost towns are best in spring and autumn.
What time is golden hour at Comet?
In October the evening golden hour starts around 6:03 PM and ends after sunset at about 6:44 PM; the morning golden hour lasts until about 8:28 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Comet?
Sunrise azimuth ranges from about 54° in June to 124° in December; sunset ranges from 306° to 236°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Comet?
Yes — the core is visible from April to August on moonless nights. The estimated sky quality is Bortle 2 (typical truly dark site).
Do you need a permit to photograph at Comet?
Personal photography from public land rarely needs a permit. Commercial shoots, models, large groups and drones may require permission from the land manager — check before you go.
How far is Comet from Boulder?
About 9.1 km (5.7 mi) in a straight line; driving distance is usually longer, especially in mountain terrain.

Sources

Location data: Wikidata, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.