Starry Memory

A personalised star map gift for Trondheim

Use the free local tool

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. Explore the Trondheim sky free

The exact sky of a meaningful Trondheim moment, calculated before you buy

A place is not a decorative caption on a star map. For a memory in Trondheim, the selected coordinates, local time and timezone determine the celestial orientation. This guide starts with a free, location-aware sky and phone gyroscope; the watermark-free HD poster is an optional keepsake after you have checked the result.

Why choose Starry Memory

  • A place-driven gift — Trondheim starts at 63.4305° N, 10.3951° E; choosing a venue or address replaces that centre point before the poster is calculated.
  • GPS · IANA reference — Exact reference: Trøndelag, 63.4305° N, 10.3951° E, Europe/Oslo.
  • Free tool — The city-specific tool works free in the browser and does not create an order.
  • Transparent limits — Weather, light pollution and local obstructions are stated as limits instead of being hidden.

In Trondheim, the keepsake begins with a real point on Earth before it becomes an image of the sky. Its verifiable starting point is GeoNames 3133880, 63.4305° N, 10.3951° E, in timezone Europe/Oslo.

The astronomical fingerprint of Trondheim

Trondheim is represented by 63.4305° N, 10.3951° E, in Trøndelag, using the IANA zone Europe/Oslo. This is a high-latitude viewpoint: the relevant celestial pole stands about 63.4° above its horizon. GeoNames record 3133880 supplies the geographic reference; its population field is 216,518 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: 5 h 11 / 18 h 49; February: 8 h 14 / 15 h 46; March: 11 h 15 / 12 h 45; April: 14 h 35 / 9 h 25; May: 17 h 43 / 6 h 17; June: 19 h 56 / 4 h 04; July: 18 h 56 / 5 h 04; August: 15 h 55 / 8 h 05; September: 12 h 35 / 11 h 25; October: 9 h 22 / 14 h 38; November: 6 h 08 / 17 h 52; December: 4 h 04 / 19 h 56. The longest estimated night in this model is December at 19 h 56; the shortest is June at 4 h 04. “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.

Trondheim's verifiable local record

Calculation identity: GeoNames 3133880 · city Trondheim · region Trøndelag · country Norway · national selection rank 3 · reference population 216,518 · source elevation —. Spatial fingerprint: latitude 63.43049 · longitude 10.39506 · north hemisphere · timezone Europe/Oslo · celestial-pole altitude 63.4°. Seasonal signature: longest night in December, 19 h 56 · shortest night in June, 4 h 04 · range 15.87 hours. Meridian star markers: Draco 88.4° * · Cassiopeia 86.6° * · Cepheus 83.4° * · Ursa Major 82.6° * · Ursa Minor 76.4° * · Perseus 71.6° *. Nearby catalogue cities: Lillestrøm 388 km · Oslo 392 km · Drammen 410 km. First regional eclipse shortlist: 2027-02-20 Penumbral lunar eclipse 23:14 UTC · 2027-08-02 Total solar eclipse 10:07 UTC · 2028-01-12 Partial lunar eclipse 04:14 UTC. Together these values form the local evidence record for the “gift” page; they change with place and remain separate from real weather.

Trondheim compared with nearby catalogue cities

1. Trondheim → Lillestrøm: 387.9 km · Δlat -3.475° · Δlon +0.654° · Δpole -3.4° · timezone Europe/Oslo = Europe/Oslo · longest night December 18 h 26 | 2. Trondheim → Oslo: 391.6 km · Δlat -3.518° · Δlon +0.351° · Δpole -3.5° · timezone Europe/Oslo = Europe/Oslo · longest night December 18 h 25 | 3. Trondheim → Drammen: 410.1 km · Δlat -3.687° · Δlon -0.191° · Δpole -3.7° · timezone Europe/Oslo = Europe/Oslo · longest night December 18 h 22. Monthly night comparison with the nearest catalogue reference — January: Trondheim 18 h 49 / Lillestrøm 17 h 38 / Δ +1.17 h · February: Trondheim 15 h 46 / Lillestrøm 15 h 13 / Δ +0.55 h · March: Trondheim 12 h 45 / Lillestrøm 12 h 39 / Δ +0.10 h · April: Trondheim 9 h 25 / Lillestrøm 9 h 47 / Δ -0.36 h · May: Trondheim 6 h 17 / Lillestrøm 7 h 12 / Δ -0.91 h · June: Trondheim 4 h 04 / Lillestrøm 5 h 35 / Δ -1.51 h · July: Trondheim 5 h 04 / Lillestrøm 6 h 16 / Δ -1.20 h · August: Trondheim 8 h 05 / Lillestrøm 8 h 40 / Δ -0.57 h · September: Trondheim 11 h 25 / Lillestrøm 11 h 29 / Δ -0.08 h · October: Trondheim 14 h 38 / Lillestrøm 14 h 16 / Δ +0.36 h · November: Trondheim 17 h 52 / Lillestrøm 16 h 55 / Δ +0.94 h · December: Trondheim 19 h 56 / Lillestrøm 18 h 26 / Δ +1.51 h. For a gift, the comparison explains why the confirmed place matters: a Trondheim memory should not silently become its neighbour even when both share a timezone.

Latitude-screened constellations for Trondheim

Each entry below gives an approximate maximum altitude at meridian transit and a practical season; an asterisk means circumpolar in this simplified centroid model: Draco: 88.4°, all year *; Cassiopeia: 86.6°, all year *; Cepheus: 83.4°, all year *; Ursa Major: 82.6°, all year *; Ursa Minor: 76.4°, all year *; Perseus: 71.6°, all year *; Auriga: 68.6°, all year *; Cygnus: 66.6°, all year *; Andromeda: 64.6°, all year *; Lyra: 62.6°, all year *; Boötes: 56.6°, all year *; Gemini: 48.6°, winter; Taurus: 44.6°, winter; Leo: 41.6°, 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.

Eclipse dates connected to the wider Norway region

20 February 2027: Penumbral lunar eclipse, 23:14 UTC; 2 August 2027: Total solar eclipse, 10:07 UTC; 12 January 2028: Partial lunar eclipse, 04:14 UTC; 26 January 2028: Annular solar eclipse, 15:08 UTC; 6 July 2028: Partial lunar eclipse, 18:20 UTC; 31 December 2028: Total lunar eclipse, 16:53 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.

What the calculation does — and does not claim

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.

Free gyroscope first, optional poster second

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 Norwegian kroner (NOK).

Frequently asked questions

What makes a Trondheim star map personal?

The confirmed date, local time and coordinates determine the map. The city shortcut is 63.4305° N, 10.3951° E, but an exact selected venue can replace it.

Can I replace the centre of Trondheim with an exact address?

Yes. Choose the intended autocomplete suggestion; its coordinates replace the city shortcut. Unselected free text is never silently sent to a default city.

Is the Trondheim tool free?

Yes. The local calculation, tables and gyroscope exploration can be used without payment. Only the unlocked HD poster is paid.

Does this guarantee clear-sky visibility?

No. The calculations describe geometry. Cloud, terrain, buildings and light pollution can change what a person sees from the ground.

Do I have to buy a poster?

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 Norwegian kroner (NOK).

Create the optional €3.99 HD poster

See also

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