15155+3319 SMR 31 AC
15h 15m 30.16s +33° 18' 53.4" P.A. 5.00 sep 93.2 mag 3.56,14.30 Sp G8IIICN-1 dist. 37.34 pc (121.8 l.y.)
| Coord 2000 |
15155+3319 |
|
Discov num |
SMR 31 |
|
Comp |
AC |
|
Coord arcsec 2000 |
15 15 30.16 +33 18 53.4 |
|
| Date first |
2002 |
|
Date last |
2018 |
|
Obs |
9 |
|
| Pa first |
5 |
|
Pa last |
4.8 |
|
P.A. Now (θ) |
4.8° |
|
| Sep first |
92.4 |
|
Sep last |
93.19 |
|
Sep. Now (ρ) |
93.19" |
|
| Mag pri |
3.56 |
|
Mag sec |
14.30 |
|
delta mag (ΔM) |
10.74 |
|
Spectral class |
G8IIICN-1 (yellow) |
|
| Pri motion ra |
+085 |
|
Sec motion ra |
+023 |
|
| Pri motion dec |
-111 |
|
Sec motion dec |
-031 |
|
| Notes |
N
(See Notes) |
|
rPM=0.724
Nature of this double is uncertain.
15155+3319 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Del Boo |
64589 |
15 15 30 +33 18 53 |
STFA 27 AB |
2021 |
128 |
78 |
105.0 |
3.56 |
7.89 |
4.33 |
Y |
|
| Show |
|
64589 |
15 15 30 +33 18 53 |
SMR 31 AC |
2018 |
9 |
5 |
93.2 |
3.56 |
14.30 |
10.74 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV7002 Boo |
|
Constellation |
Bootes |
|
SAO |
64589 |
|
HIP |
74666 |
|
| Tycho2 |
2566-01639-1 |
|
Gaia DR2 |
1278391075716738560 |
|
HD |
135722 |
|
HR |
5681 |
|
| GC |
20523 |
|
ADS |
9559 |
|
BD |
BD+33 2561 |
|
Bayer |
Delta Bootis |
|
| Bayer name |
Del Boo |
|
Flamsteed |
49 Bootis |
|
Flamsteed name |
49 Boo |
|
FK5 |
563 |
|
| Distance |
37.34 |
|
Distance ly |
121.8 |
|
Bayer greek |
δ Boo |
|
