The 17-mag eclipsing binary system NN Ser

This photo represents the sky field around the 17-mag variable stellar system NN Serpentis, as seen in a 5 sec exposure through a Visual filter with VLT ANTU and FORS1. It was obtained just before the observation of an eclipse of this unusual object and served to centre the telescope on the corresponding sky position. The field shown here measures 4.5 x 4.5 armin 2 (1365 x 1365 pix 2 ; 0.20 arcsec/pix). The field is somewhat larger than that shown in ESO Press Photo eso9936 and has the same orientation to allow comparison: North is about 20° anticlockwise from the top and East is 90° clockwise from that direction.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso9936a
Tipo:Osservazione
Data di pubblicazione:20 Luglio 1999
Notizie relative:eso9936
Dimensione:2298 x 2300 px

A proposito delll'oggetto

Nome:NN Serpentis
Tipo:Milky Way : Star : Grouping : Binary
Distanza:1600 Anni luce
Constellation:Serpens Caput
Categoria:Stars

Formati delle immagini

JPEG grande
3,3 MB

Sfondi

1024x768
531,9 KB
1280x1024
901,4 KB
1600x1200
1,3 MB
1920x1200
1,5 MB
2048x1536
2,0 MB

Coordinate

Position (RA):15 52 56.14
Position (Dec):12° 54' 44.25"
Field of view:4.55 x 4.55 arcminutes
Orientazione:Il Nord è a 19.2° a destra della verticale

Colori e filtri

BandaTelescopio
Ottico
V
Very Large Telescope
FORS1