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 Mandurah 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 Mandurah. It shows which patterns can clear a practical horizon, how high they culminate and which northern or southern groups stay circumpolar.
From Mandurah, latitude decides how high each familiar pattern can climb above an ideal horizon. Its verifiable starting point is GeoNames 2067119, 32.5269° S, 115.7217° E, in timezone Australia/Perth.
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: 62.5°, all year *; Carina: 62.5°, all year *; Pavo: 57.5°, all year *; Hydrus: 52.5°, all year *; Octans: 40.5°, all year *; Scorpius: 83.5°, winter; Sagittarius: 82.5°, winter; Canis Major: 77.5°, summer; Centaurus: 75.5°, autumn; Phoenix: 74.5°, spring; Virgo: 61.5°, autumn; Aquila: 57.5°, winter; Orion: 52.5°, summer; Leo: 42.5°, 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 2067119 · city Mandurah · region Western Australia · country Australia · national selection rank 20 · reference population 107,643 · source elevation —. Spatial fingerprint: latitude -32.52690 · longitude 115.72170 · south hemisphere · timezone Australia/Perth · celestial-pole altitude 32.5°. Seasonal signature: longest night in June, 14 h 08 · shortest night in December, 9 h 52 · range 4.26 hours. Meridian star markers: Crux 62.5° * · Carina 62.5° * · Pavo 57.5° * · Hydrus 52.5° * · Octans 40.5° * · Scorpius 83.5°. Nearby catalogue cities: Perth 65 km · Adelaide 2128 km · Ballarat 2611 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 “constellations” page; they change with place and remain separate from real weather.
1. Mandurah → Perth: 65.2 km · Δlat +0.575° · Δlon +0.140° · Δpole -0.5° · timezone Australia/Perth = Australia/Perth · longest night June 14 h 05 | 2. Mandurah → Adelaide: 2127.7 km · Δlat -2.402° · Δlon +22.877° · Δpole +2.4° · timezone Australia/Perth ≠ Australia/Adelaide · longest night June 14 h 20 | 3. Mandurah → Ballarat: 2610.8 km · Δlat -5.039° · Δlon +28.128° · Δpole +5.1° · timezone Australia/Perth ≠ Australia/Melbourne · longest night June 14 h 35. Monthly night comparison with the nearest catalogue reference — January: Mandurah 10 h 05 / Perth 10 h 08 / Δ -0.05 h · February: Mandurah 10 h 51 / Perth 10 h 52 / Δ -0.02 h · March: Mandurah 11 h 46 / Perth 11 h 46 / Δ -0.01 h · April: Mandurah 12 h 49 / Perth 12 h 47 / Δ +0.02 h · May: Mandurah 13 h 40 / Perth 13 h 38 / Δ +0.04 h · June: Mandurah 14 h 08 / Perth 14 h 05 / Δ +0.05 h · July: Mandurah 13 h 56 / Perth 13 h 54 / Δ +0.04 h · August: Mandurah 13 h 12 / Perth 13 h 10 / Δ +0.03 h · September: Mandurah 12 h 11 / Perth 12 h 11 / Δ +0.01 h · October: Mandurah 11 h 10 / Perth 11 h 11 / Δ -0.02 h · November: Mandurah 10 h 18 / Perth 10 h 20 / Δ -0.03 h · December: Mandurah 9 h 52 / Perth 9 h 55 / Δ -0.05 h. For constellation screening, latitude difference becomes a meridian-altitude difference; a small change is reported as small rather than exaggerated for local copy.
Mandurah is represented by 32.5269° S, 115.7217° E, in Western Australia, using the IANA zone Australia/Perth. This is a mid-latitude viewpoint: the relevant celestial pole stands about 32.5° above its horizon. GeoNames record 2067119 supplies the geographic reference; its population field is 107,643 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.
The following pairs are approximate daylight / night duration around the 15th of each month: January: 13 h 55 / 10 h 05; February: 13 h 09 / 10 h 51; March: 12 h 14 / 11 h 46; April: 11 h 11 / 12 h 49; May: 10 h 20 / 13 h 40; June: 9 h 52 / 14 h 08; July: 10 h 04 / 13 h 56; August: 10 h 48 / 13 h 12; September: 11 h 49 / 12 h 11; October: 12 h 50 / 11 h 10; November: 13 h 42 / 10 h 18; December: 14 h 08 / 9 h 52. The longest estimated night in this model is June at 14 h 08; the shortest is December at 9 h 52. “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.
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).
It removes patterns that only graze an ideal horizon. 22 catalogue groups pass that screen here, but local hills and buildings can require a higher threshold.
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See the Mandurah constellation table
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