Planetary Nebula Hen 2-428
Colour composite of some of the first astronomical exposures obtained by YEPUN . The object is the planetary nebula Hen 2-428 that is located at a distance of 6,000-8,000 light-years and seen in a dense sky field, only 2° from the main plane of the Milky Way. As other planetary nebulae, it is caused by a dying star (the bluish object at the centre) that shreds its outer layers. The image is based on exposures through three optical filtres: B(lue) (10 min exposure, seeing 0.9 arcsec; here rendered as blue), V(isual) (5 min; 0.9 arcsec; green) and R(ed) (3 min; 0.9 arcsec; red). The field measures 88 x 78 arcsec 2 (1 pixel = 0.09 arcsec). North is to the lower right and East is to the lower left. The 5-day old Moon was about 90° away in the sky that was accordingly bright. The zenith angle was 44°.
Crédit:ESO
À propos de l'image
Identification: | eso0028a |
Type: | Observation |
Date de publication: | 4 septembre 2000 |
Communiqués de presse en rapport: | eso0028 |
Taille: | 978 x 864 px |
À propos de l'objet
Nom: | Hen 2-428 |
Type: | Milky Way : Nebula : Type : Planetary |
Distance: | 7000 années lumière |
Constellation: | Aquila |
Catégorie: | Nebulae |
Fonds d'écran
Coordinates
Position (RA): | 19 13 5.24 |
Position (Dec): | 15° 46' 40.13" |
Couleurs & filtres
Domaine | Télescope |
---|---|
Visible B | Very Large Telescope |
Visible V | Very Large Telescope |
Visible R | Very Large Telescope |