Astrometry Examples
Star Identification
The brightest stars can be identified in these star field images. Move the mouse over a bright star. If there is a title popup with a star's name or number then click to show essential data from the Hipparcos star catalog.
Astrometry.net
Upload your constellation image to astrometry.net to obtain an annotated copy plus calibration data. It is amazing!
Orion
Astrometry
- Center (RA, Dec): (82.209°, 3.064°)
- Center (RA, hms): 05h 28m 50.224s
- Center (Dec, dms): +03° 03' 51.246"
- Size: 47.2 x 31.5 deg
- Radius: 28.372 deg
- Pixel scale: 133 arcsec/pixel
- Orientation: Up is 67.2 degrees E of N
- URL: Astrometry.net
Location
Major Objects
Cone nebula | Christmas Tree cluster | NGC 2264 | IC 443 | NGC 2174 | Horsehead nebula | NGC 1990 | Great Nebula in Orion | NGC 1976 | Witch Head nebula | NGC 1746 | The star Cursa (βEri) | The star Arneb (αLep) | The star Mintaka (δOri) | The star Saiph (κOri) | The star Alnitak (ζOri) | The star Alhena (γGem) | The star Alnilam (εOri) | The star Bellatrix (γOri) | The star Betelgeuse (αOri) | The star Rigel (βOri)
Perseus
Astrometry
- Center (RA, Dec): (51.275°, 45.618°)
- Center (RA, hms): 03h 25m 06.111s
- Center (Dec, dms): +45°37' 06.181"
- Size: 33 x 18.4 deg
- Radius: 18.907 deg
- Pixel scale: 92.9 arcsec/pixel
- Orientation: Up is 97.4 degrees E of N
- URL: Astrometry.net
Location
Major Objects
NGC 1528 California nebula | NGC 1499 | IC 1848 | M 34 | NGC 1039 | NGC 884 | Double cluster | NGC 869 | The star κPer | The star νPer | The star ηPer | The star ρPer | The star δPer | The star γPer | The star εPer | The star Atik (ζPer) | The star Algol (βPer) | The star Mirfak (αPer)
