Red bright giant · Sagitta
δ Sagittae
Also known as: δ Sge, HIP 97365
mag 3.7590 light-years
About
δ Sagittae is a red bright giant of magnitude 3.7 in Sagitta, about 590 light-years away.
How to find it
- δ Sagittae is in the constellation Sagitta.
- Best evenings: around early September it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from north of 61° S.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesVisible from the suburbs on a clear night, but lost in bright city skies.
- Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
- Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.
Stars look the same in any instrument: brighter and sharper, but never bigger.
Facts
| Designation | δ Sagittae (δ Sge) |
|---|---|
| Hipparcos number | HIP 97365 |
| Type | Red bright giant |
| Spectral type | M2II + B6 |
| Colour | OrangeB−V colour index 1.31 |
| Magnitude | 3.7The smaller the number, the brighter. |
| Distance | 590 light-yearsThe light you see left it around 1430. |
| Proper motion | 0.012″ per year across the sky |
| Constellation | Sagitta |
| Right ascension (J2000) | 19h 47m 23.3s |
| Declination (J2000) | +18° 32′ 03″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →