This page provides a result prefilled with the place and coordinates. The calculations and phone gyroscope work without an order; the HD poster remains optional. See the Reno constellation table
A latitude-based guide with transit altitude, season and circumpolar status
Not every constellation rises from every latitude. This guide compares the representative declination of well-known constellations with the latitude of Reno. It shows which patterns can clear a practical horizon, how high they culminate and which northern or southern groups stay circumpolar.
From Reno, latitude decides how high each familiar pattern can climb above an ideal horizon. Its verifiable starting point is GeoNames 5511077, 39.5296° N, 119.8138° W, in timezone America/Los_Angeles.
Each entry below gives an approximate maximum altitude at meridian transit and a practical season; an asterisk means circumpolar in this simplified centroid model: Ursa Major: 73.5°, all year *; Cassiopeia: 69.5°, all year *; Draco: 64.5°, all year *; Cepheus: 59.5°, all year *; Ursa Minor: 52.5°, all year *; Cygnus: 89.5°, summer; Andromeda: 88.5°, autumn; Auriga: 87.5°, winter; Lyra: 86.5°, summer; Perseus: 84.5°, winter; Boötes: 80.5°, spring; Gemini: 72.5°, winter; Taurus: 68.5°, winter; Leo: 65.5°, spring. This is a planning guide, not a promise that every star will be visible from a bright street. Date, hour, local obstructions and light pollution still matter. The live sky tool performs the date-specific projection that a static latitude table cannot.
Calculation identity: GeoNames 5511077 · city Reno · region Nevada · country United States · national selection rank 77 · reference population 264,165 · source elevation 1373 m. Spatial fingerprint: latitude 39.52963 · longitude -119.81380 · north hemisphere · timezone America/Los_Angeles · celestial-pole altitude 39.5°. Seasonal signature: longest night in December, 14 h 47 · shortest night in June, 9 h 13 · range 5.56 hours. Meridian star markers: Ursa Major 73.5° * · Cassiopeia 69.5° * · Draco 64.5° * · Cepheus 59.5° * · Ursa Minor 52.5° * · Cygnus 89.5°. Nearby catalogue cities: Sacramento 179 km · Stockton 217 km · Oakland 287 km. First regional eclipse shortlist: 2027-02-20 Penumbral lunar eclipse 23:14 UTC · 2027-08-17 Penumbral lunar eclipse 07:14 UTC · 2028-01-12 Partial lunar eclipse 04:14 UTC. Together these values form the local evidence record for the “constellations” page; they change with place and remain separate from real weather.
1. Reno → Sacramento: 179.4 km · Δlat -0.948° · Δlon -1.681° · Δpole -0.9° · timezone America/Los_Angeles = America/Los_Angeles · longest night December 14 h 41 | 2. Reno → Stockton: 216.7 km · Δlat -1.572° · Δlon -1.477° · Δpole -1.5° · timezone America/Los_Angeles = America/Los_Angeles · longest night December 14 h 37 | 3. Reno → Oakland: 286.9 km · Δlat -1.725° · Δlon -2.457° · Δpole -1.7° · timezone America/Los_Angeles = America/Los_Angeles · longest night December 14 h 37. Monthly night comparison with the nearest catalogue reference — January: Reno 14 h 30 / Sacramento 14 h 25 / Δ +0.09 h · February: Reno 13 h 30 / Sacramento 13 h 27 / Δ +0.05 h · March: Reno 12 h 19 / Sacramento 12 h 18 / Δ +0.01 h · April: Reno 10 h 57 / Sacramento 10 h 59 / Δ -0.04 h · May: Reno 9 h 50 / Sacramento 9 h 54 / Δ -0.07 h · June: Reno 9 h 13 / Sacramento 9 h 19 / Δ -0.10 h · July: Reno 9 h 28 / Sacramento 9 h 34 / Δ -0.09 h · August: Reno 10 h 26 / Sacramento 10 h 30 / Δ -0.06 h · September: Reno 11 h 46 / Sacramento 11 h 46 / Δ +0.00 h · October: Reno 13 h 04 / Sacramento 13 h 02 / Δ +0.04 h · November: Reno 14 h 13 / Sacramento 14 h 08 / Δ +0.08 h · December: Reno 14 h 47 / Sacramento 14 h 41 / Δ +0.10 h. For constellation screening, latitude difference becomes a meridian-altitude difference; a small change is reported as small rather than exaggerated for local copy.
Reno is represented by 39.5296° N, 119.8138° W, in Nevada, using the IANA zone America/Los_Angeles. This is a mid-latitude viewpoint: the relevant celestial pole stands about 39.5° above its horizon. GeoNames record 5511077 supplies the geographic reference; its population field is 264,165 and is used for catalogue selection, not presented as a live census. The source elevation is 1373 metres; terrain can hide a low object even when the geometric calculation says it rises.
The following pairs are approximate daylight / night duration around the 15th of each month: January: 9 h 30 / 14 h 30; February: 10 h 30 / 13 h 30; March: 11 h 41 / 12 h 19; April: 13 h 03 / 10 h 57; May: 14 h 10 / 9 h 50; June: 14 h 47 / 9 h 13; July: 14 h 32 / 9 h 28; August: 13 h 34 / 10 h 26; September: 12 h 14 / 11 h 46; October: 10 h 56 / 13 h 04; November: 9 h 47 / 14 h 13; December: 9 h 13 / 14 h 47. The longest estimated night in this model is December at 14 h 47; the shortest is June at 9 h 13. “Night” here is the complement of daylight on a flat horizon. Civil, nautical and astronomical twilight are not interchangeable, and weather is not predicted by this table.
Coordinates, date and local time feed the same astronomical workflow used by the poster. The HYG catalogue provides star entries, while Astronomy Engine calculates moving bodies. The page does not claim that city-centre coordinates equal a hospital, venue or home: selecting an autocomplete suggestion replaces the shortcut with that location. It also separates astronomical geometry from weather and light pollution, so a correct map never becomes a claim that the ground-level sky was cloudless.
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It removes patterns that only graze an ideal horizon. 20 catalogue groups pass that screen here, but local hills and buildings can require a higher threshold.
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See the Reno constellation table
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