15155+3319 STFA 27 AB (Del Boo)
15h 15m 30.16s +33° 18' 53.4" P.A. 78.00 sep 105.0 mag 3.56,7.89 Sp G8III+G0V dist. 37.34 pc (121.8 l.y.)
| Coord 2000 |
15155+3319 |
|
Discov num |
STFA 27 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 15 30.16 +33 18 53.4 |
|
| Date first |
1780 |
|
Date last |
2021 |
|
Obs |
128 |
|
| Pa first |
84 |
|
Pa last |
77.7 |
|
P.A. Now (θ) |
77.7° |
|
| Sep first |
135.0 |
|
Sep last |
104.978 |
|
Sep. Now (ρ) |
104.978" |
|
| Mag pri |
3.56 |
|
Mag sec |
7.89 |
|
delta mag (ΔM) |
4.33 |
|
Spectral class |
G8III+G0V (yellow/yellow) |
|
| Pri motion ra |
+085 |
|
Sec motion ra |
+082 |
|
| Pri motion dec |
-112 |
|
Sec motion dec |
-110 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.026 (< 0.3, Physical double)
This double is physical.
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
| Name |
Del Boo |
|
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 |
|
