Historical Sky Lookup

Enter a place, latitude/longitude, time zone, and exact date-time to reconstruct a planetarium-style view of the Sun, Moon, planets, and bright stars above the horizon at that moment.

City search or manual coordinates IANA time zones + fixed UTC offsets Download PNG, JSON, CSV, or full report Browser-side astronomy engine

Lookup controls

Choose a city or enter coordinates, then set the local historical date and time.

1. Location

Country / region filter

City search

Latitude

Longitude

Latitude north is positive. Longitude east is positive; Ireland and the Americas normally use negative longitudes.

2. Exact local date and time

Year

Month

Day

Hour

Minute

Second

Time zone

Use fixed UTC offset instead of time-zone rules

UTC offset hours

UTC offset minutes

For ancient dates or places with disputed historic civil-time rules, fixed UTC offset is more transparent than modern IANA time-zone assumptions.

3. Visual options

Star magnitude limit

4.2

Show objects below horizon in table

Label bright objects on picture

Draw constellation guide lines

Sky details

Objects for selected moment

0 objects

Object	Type	Alt	Az	RA	Dec	Mag	Status