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. Calculate the sky over Sydney now
A free local guide to the Moon, planets and constellations visible tonight
The night sky changes with both time and place. This page calculates tonight above Sydney from its coordinates and local timezone, then lets you refine the location. The live tool identifies the Moon, bright planets and recognisable constellations around 22:00 local time without requiring a purchase.
Tonight in Sydney is neither yesterday's sky nor another latitude's view: the calculation restarts from local place and time. Its verifiable starting point is GeoNames 2147714, 33.8678° S, 151.2073° E, in timezone Australia/Sydney.
Sydney is represented by 33.8678° S, 151.2073° E, in New South Wales, using the IANA zone Australia/Sydney. This is a mid-latitude viewpoint: the relevant celestial pole stands about 33.9° above its horizon. GeoNames record 2147714 supplies the geographic reference; its population field is 5,638,830 and is used for catalogue selection, not presented as a live census. No source elevation is used, so a flat horizon remains the transparent default. Each entry below gives an approximate maximum altitude at meridian transit and a practical season; an asterisk means circumpolar in this simplified centroid model: Crux: 63.9°, all year *; Carina: 63.9°, all year *; Pavo: 58.9°, all year *; Hydrus: 53.9°, all year *; Octans: 41.9°, all year *; Scorpius: 82.1°, winter; Sagittarius: 81.1°, winter; Centaurus: 76.9°, autumn; Canis Major: 76.1°, summer; Phoenix: 75.9°, spring; Virgo: 60.1°, autumn; Aquila: 56.1°, winter; Orion: 51.1°, summer; Leo: 41.1°, autumn. 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 2147714 · city Sydney · region New South Wales · country Australia · national selection rank 1 · reference population 5,638,830 · source elevation —. Spatial fingerprint: latitude -33.86785 · longitude 151.20732 · south hemisphere · timezone Australia/Sydney · celestial-pole altitude 33.9°. Seasonal signature: longest night in June, 14 h 14 · shortest night in December, 9 h 46 · range 4.48 hours. Meridian star markers: Crux 63.9° * · Carina 63.9° * · Pavo 58.9° * · Hydrus 53.9° * · Octans 41.9° * · Scorpius 82.1°. Nearby catalogue cities: Central Coast 51 km · Wollongong 68 km · Newcastle 117 km. First regional eclipse shortlist: 2027-07-18 Penumbral lunar eclipse 16:04 UTC · 2027-08-17 Penumbral lunar eclipse 07:14 UTC · 2028-07-06 Partial lunar eclipse 18:20 UTC. Together these values form the local evidence record for the “tonight” page; they change with place and remain separate from real weather.
1. Sydney → Central Coast: 51.0 km · Δlat +0.438° · Δlon +0.164° · Δpole -0.5° · timezone Australia/Sydney = Australia/Sydney · longest night June 14 h 12 | 2. Sydney → Wollongong: 68.3 km · Δlat -0.556° · Δlon -0.314° · Δpole +0.5° · timezone Australia/Sydney = Australia/Sydney · longest night June 14 h 17 | 3. Sydney → Newcastle: 117.1 km · Δlat +0.938° · Δlon +0.573° · Δpole -1.0° · timezone Australia/Sydney = Australia/Sydney · longest night June 14 h 10. Monthly night comparison with the nearest catalogue reference — January: Sydney 9 h 59 / Central Coast 10 h 01 / Δ -0.04 h · February: Sydney 10 h 47 / Central Coast 10 h 48 / Δ -0.02 h · March: Sydney 11 h 45 / Central Coast 11 h 45 / Δ +0.00 h · April: Sydney 12 h 51 / Central Coast 12 h 50 / Δ +0.01 h · May: Sydney 13 h 46 / Central Coast 13 h 44 / Δ +0.03 h · June: Sydney 14 h 14 / Central Coast 14 h 12 / Δ +0.04 h · July: Sydney 14 h 02 / Central Coast 14 h 01 / Δ +0.03 h · August: Sydney 13 h 16 / Central Coast 13 h 14 / Δ +0.02 h · September: Sydney 12 h 12 / Central Coast 12 h 12 / Δ +0.00 h · October: Sydney 11 h 08 / Central Coast 11 h 09 / Δ -0.02 h · November: Sydney 10 h 12 / Central Coast 10 h 14 / Δ -0.03 h · December: Sydney 9 h 46 / Central Coast 9 h 48 / Δ -0.04 h. For tonight's sky, longitude changes local rotation while latitude changes altitude; the tool therefore starts from Sydney and then accepts a more exact address.
The following pairs are approximate daylight / night duration around the 15th of each month: January: 14 h 01 / 9 h 59; February: 13 h 13 / 10 h 47; March: 12 h 15 / 11 h 45; April: 11 h 09 / 12 h 51; May: 10 h 14 / 13 h 46; June: 9 h 46 / 14 h 14; July: 9 h 58 / 14 h 02; August: 10 h 44 / 13 h 16; September: 11 h 48 / 12 h 12; October: 12 h 52 / 11 h 08; November: 13 h 48 / 10 h 12; December: 14 h 14 / 9 h 46. The longest estimated night in this model is June at 14 h 14; the shortest is December at 9 h 46. “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.
18 July 2027: Penumbral lunar eclipse, 16:04 UTC; 17 August 2027: Penumbral lunar eclipse, 07:14 UTC; 6 July 2028: Partial lunar eclipse, 18:20 UTC; 22 July 2028: Total solar eclipse, 02:56 UTC; 31 December 2028: Total lunar eclipse, 16:53 UTC; 11 July 2029: Partial solar eclipse, 15:37 UTC. This is deliberately a regional shortlist. Solar-eclipse paths are narrow, lunar eclipses require the Moon to be above the local horizon, and both can be lost to cloud. Open the NASA source attached to each event before planning travel or observation; never look at the Sun without certified eclipse viewers.
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.
On a compatible phone, the gyroscope turns the calculated sky into a movable window: tilt and rotate to explore, with star names shown beside key points. That experience is free. If a date deserves a keepsake, the same place can continue into the editor. The protected preview remains watermarked before payment; the €3.99 purchase unlocks the 4960 × 7016 px, 300 DPI file. Physical formats appear only when availability, delivery supplement and timing can be checked for the destination. Checkout is in euros; the card issuer shows the current conversion to Australian dollars (AUD).
The current summary targets about 22:00 local time in Australia/Sydney. Recalculate after changing place; planetary altitude and constellation visibility move through the night.
Yes. Choose the intended autocomplete suggestion; its coordinates replace the city shortcut. Unselected free text is never silently sent to a default city.
Yes. The local calculation, tables and gyroscope exploration can be used without payment. Only the unlocked HD poster is paid.
No. The calculations describe geometry. Cloud, terrain, buildings and light pollution can change what a person sees from the ground.
No. The tool stands on its own. If wanted, the watermark-free 4960 × 7016 px, 300 DPI file costs €3.99. Checkout is in euros; the card issuer shows the current conversion to Australian dollars (AUD).
Calculate the sky over Sydney now
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A first date, a birth, a wedding or tonight: create a star map for your chosen place and date, with your own words.
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Choose a catalogue star and personalise its PDF certificate. After purchase, your private order link opens a guide to its calculated direction in the sky.
Free demo with an example star. No purchase or star assignment.
A compatible phone is recommended for gyroscope guidance. Visibility depends on your location, time, weather and the star’s brightness. The certificate records an entry in the private Starry Memory registry, not ownership of the celestial body.