Gemini
the Twins
Star chart
J2000the Twins
Fixed J2000 coordinates
This image was made with reference to IAU charts.View IAU original · Opens in a new tab
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How to read this chart
Dots mark stars, and their sizes indicate brightness. Stars appear dark on light charts and light on dark charts. Green lines show a constellation pattern. The surrounding grid gives right ascension and declination.
This is a fixed reference map, rather than a view of tonight’s sky.
Read the full chart guide →Boundary coordinates
The boundary marks a sky region; it is separate from the green star pattern. These files preserve ordered coordinate points in the J2000 reference system.
Gemini24 boundary pointsDownload TXT →
View coordinate format & sample
Right ascension uses hours, minutes and seconds. Declination is in degrees. Convert right ascension to degrees with 15 × (hours + minutes/60 + seconds/3600).
RA (h m s) | Dec (degrees) | Abbreviation 06 25 29.4633 | 11.9332972 | GEM 06 25 46.5402 | 17.4328651 | GEM 06 20 16.6981 | 17.4495068 | GEM 06 20 29.7906 | 21.4491768 | GEM 06 00 30.0373 | 21.5098724 | GEM
The 0h / 24h meridian is continuous. A coordinate jump there should not be treated as a straight line across a flat map.