How dark the sky is at Natural Bridge: Bortle Class 4, rural and suburban transition
The zenith sky here reads 21.64 magnitudes per square arcsecond. That is about 1.4 times the brightness of a pristine natural sky (22.0), the extra coming from artificial light scattered in the air.
Milky Way
The Milky Way is impressive well above the horizon but loses its fine detail
Zodiacal light
Zodiacal light is visible but faint
Faintest naked-eye stars
Magnitude 6.1 to 6.5 overhead
Naked eye
Light domes from towns show in several directions; M33 is hard even with averted vision
At the eyepiece
Clusters, planetary nebulae and bright galaxies are fine; faint nebulae need a filter
Sky brightness and class come from the World Atlas of Artificial Night Sky Brightness (Falchi et al. 2016, CC BY-NC 4.0), with natural skyglow added. On the night, haze, smoke, humidity and the Moon set the real limit.
What's up from Natural Bridge by season
At latitude 37.6°N, the north celestial pole stands 38° above the horizon, close to Polaris. Every star north of declination -52° rises at some time of year. The Milky Way core in Sagittarius climbs to 23° above the southern horizon. These are the constellations well placed, 35° or more above the horizon, at about 10 pm in the middle of each season, brightest first.
January evenings (winter): Auriga, Orion, and Canis Minor
- AurigaOverhead, brightest star Capella
- OrionHigh in the south, brightest star Rigel
- Canis MinorIn the southeast, brightest star Procyon
- TaurusHigh in the southwest, brightest star Aldebaran
- GeminiHigh in the southeast, brightest star Pollux
- Ursa MajorIn the northeast, brightest star Alioth
- PerseusHigh in the northwest, brightest star Mirfak
- AriesIn the west, brightest star Hamal
Also well placed: Cassiopeia, Triangulum, Lynx, Cancer, Monoceros, Camelopardalis.
April evenings (spring): Bootes, Virgo, and Leo
- BootesHigh in the east, brightest star Arcturus
- VirgoIn the southeast, brightest star Spica
- LeoHigh in the southwest, brightest star Regulus
- Ursa MajorHigh in the northwest, brightest star Alioth
- Ursa MinorIn the north, brightest star Polaris
- Corona BorealisIn the east, brightest star Alphecca
- Canes VenaticiOverhead, brightest star Cor Caroli
- LynxIn the northwest, brightest star Alpha Lyncis
Also well placed: Cancer, Crater, Leo Minor, Camelopardalis, Coma Berenices, Sextans.
July evenings (summer): Bootes, Lyra, and Aquila
- BootesHigh in the west, brightest star Arcturus
- LyraOverhead, brightest star Vega
- AquilaIn the southeast, brightest star Altair
- CygnusHigh in the northeast, brightest star Deneb
- Ursa MinorIn the north, brightest star Polaris
- OphiuchusIn the south, brightest star Rasalhague
- Corona BorealisHigh in the west, brightest star Alphecca
- DracoHigh in the north, brightest star Eltanin
Also well placed: Cepheus, Serpens, Hercules, Canes Venatici, Sagitta, Delphinus, Lacerta, Scutum, Vulpecula.
October evenings (fall): Cygnus, Perseus, and Aries
- CygnusHigh in the northwest, brightest star Deneb
- PerseusIn the northeast, brightest star Mirfak
- AriesIn the east, brightest star Hamal
- CetusIn the southeast, brightest star Diphda
- AndromedaOverhead, brightest star Alpheratz
- DracoIn the northwest, brightest star Eltanin
- CassiopeiaHigh in the north, brightest star Schedar
- PegasusHigh in the southwest, brightest star Enif
Also well placed: Cepheus, Aquarius, Triangulum, Sagitta, Pisces, Delphinus, Lacerta, Equuleus, Vulpecula.
Showpieces from Natural Bridge through the year
| Sight | Constellation | January | April | July | October |
|---|---|---|---|---|---|
| Andromeda Galaxy (M31) | Andromeda | In the northwest | - | - | Overhead |
| Orion Nebula (M42) | Orion | In the south | - | - | - |
| Pleiades (M45) | Taurus | High in the west | - | - | In the east |
| Double Cluster | Perseus | High in the northwest | - | - | High in the northeast |
| Hercules Cluster (M13) | Hercules | - | In the northeast | Overhead | - |
| Whirlpool Galaxy (M51) | Canes Venatici | - | High in the northeast | In the northwest | - |
| Ring Nebula (M57) | Lyra | - | - | Overhead | In the west |
| Lagoon Nebula (M8) | Sagittarius | - | - | In the south | - |
At about 10 pm on the 15th of each month; a dash means the sight is below 25° then.
Never set from Natural Bridge
Only skim the southern horizon from Natural Bridge
Never rise from Natural Bridge
Where to set up at Natural Bridge
The coordinates on this page point to Natural Bridge, at 300 m (980 ft): 37.628°N, 79.545°W.
Map data © OpenStreetMap contributors. Open the larger map · Directions. Arrive before dark, park facing away from other observers, and use red light only.
Natural Bridge among the dark sky places of Virginia
Each dot is a dark sky place, colored by Bortle class; select one for its page. Diamonds are star parties. See Virginia dark sky places for the full list, darkest first.
Camping and lodging at Natural Bridge
The nearest town with motels or inns is Natural Bridge, VA. Check the official site for campgrounds and overnight rules; many parks close their gates at night, so ask about after-dark access.
Dark sky places nearest Natural Bridge
| Place | Where | Bortle | Distance |
|---|---|---|---|
| Douthat State Park | Virginia | 3 | 38 km (24 mi) |
| James River State Park | Virginia | 3 | 65 km (40 mi) |
| Calvin Price State Forest | West Virginia | 2 | 72 km (45 mi) |
| Watoga State Park | West Virginia | 2 | 75 km (47 mi) |
| Beartown State Park | West Virginia | 2 | 80 km (49 mi) |
| Droop Mountain Battlefield State Park | West Virginia | 2 | 84 km (52 mi) |
| Holliday Lake State Park | Virginia | 3 | 84 km (52 mi) |
| Seneca State Forest | West Virginia | 2 | 85 km (53 mi) |
Star parties near Natural Bridge
| Star party | Near | Distance | Usual timing |
|---|---|---|---|
| Green Bank Star Quest | Green Bank, West Virginia | 92 km (57 mi) | Summer |
| Almost Heaven Star Party | Riverton, West Virginia | 119 km (74 mi) | New-moon weekend in August |
| Shenandoah Night Sky Festival | Luray, Virginia | 139 km (87 mi) | Late summer |
| Cherry Springs Star Party | Coudersport, Pennsylvania | 472 km (293 mi) | June, near new moon |
Planning a trip? Astrotourism in Virginia puts the dark sky places, observatories, clubs, star parties, planetariums and science centers of the state on one map, with the best night out worked out.
Observatories and astronomy clubs near Natural Bridge
Observatories within 100 km
- Winfree ObservatoryLynchburg, Virginia, 39 km (24 mi), open to the public
- Fan Mountain ObservatoryAlbemarle County, Virginia, 80 km (50 mi), research observatory
- Stokesville ObservatoryStokesville, Virginia, 88 km (54 mi), research observatory
- Green Bank Telescope (GBT)Green Bank, West Virginia, 90 km (56 mi), open to the public
- Green Bank 140 Foot TelescopeGreen Bank, West Virginia, 94 km (58 mi), research observatory
Nearest astronomy clubs
- Blue Ridge Astronomy ClubForest, Virginia, 40 km (25 mi). Meets Usually 4th Tuesday monthly, local public library community room in Bedford/Forest/Lynchburg area (varies)
- Roanoke Valley Astronomical SocietyRoanoke, Virginia, 56 km (35 mi)
- Star City Astronomy NetworkRoanoke, Virginia, 63 km (39 mi). Meets No regular meetings; members meet at observing sessions
- Charlottesville Astronomical SocietyCharlottesville, Virginia, 100 km (62 mi). Meets 1st Wednesday monthly, 7-9 pm
- Greensboro Astronomy ClubGreensboro, North Carolina, 168 km (105 mi). Meets Monthly Friday, 7:30-9 pm
See observatories and astronomy clubs in Virginia. Local clubs often hold their star parties at dark sky places like this one.
Natural Bridge record
Every value in the dark sky places dataset for Natural Bridge
| Park | 673 |
|---|---|
| Name | Natural Bridge |
| TypeLong | State Park |
| Type1 | SP |
| IDS | park |
| Bortle | 4 |
| Statelong | Virginia |
| State | VA |
| Web | https://www.dcr.virginia.gov/state-parks/natural-bridge |
| Lat | 37.62750 |
| Lon | -79.54528 |
| LatLonSpot | Natural Bridge |
| Elevation_m | 300 |
| LandManager | Virginia Department of Conservation and Recreation |
| Status | Open |
| Lodging | Natural Bridge, VA |
| Sources | https://en.wikipedia.org/wiki/Natural_Bridge_(Virginia) |
| SQM | 21.64 |
| DarkSky | Park |
| DarkSkyYear | 2019 |
From the site's dark sky places dataset (parks_q426). The sky by season is computed from the coordinates.