Theta Sagittae A

No dss image available for Theta Sagittae A
 
Aladin viewer for the region around Theta Sagittae A
θ Sge A, 17 Sge A
BD+20 4453, HD 191570, HR 7705, WDS J20099+2055A, SAO 88276, GSC 01630-00481, HIP 99352, Gaia DR3 1829590548393010560

Type  Star
Magnitude  6.516
Right Ascension  20h 9' 56.6"  (2000)
Declination  20° 54' 54" N
Constellation  Sagitta
Classification  F3V
Observing Notes

Andrew Cooper
Jun 20, 2023    Waikoloa, HI (map)
15cm f/5 Newtonian, Primero @ 92x
Seeing: 6 Transparency: 7 Moon: 0%

θ Sge is a yellow-white in a pretty clump of stars among rich galactic starfield, a 9th magnitude companion (θ SgeB) visible 12" northwest, a wide double with the 7th magnitude HD191571 visible 2' southwest

Gaia EDR3 data shows that the 9th magnitude 12" companion is a very close match in parallax and shares a high proper motion, this is indeed a gravitationally bound pair, the 7th magnitude star is a background star
Other Data Sources for Theta Sagittae A
Associated objects for Theta Sagittae A
Nearby objects for Theta Sagittae A
Credits...

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

A complete list of credits and sources can be found on the about page

Theta Sagittae A