21078+2945 MLB 715 AB
21h 07m 48.34s +29° 45' 22.2" P.A. 40.00 sep 5.5 mag 9.78,13.61 Sp K8 dist. 32.71 pc (106.7 l.y.)
| Coord 2000 |
21078+2945 |
|
Discov num |
MLB 715 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 07 48.34 +29 45 22.2 |
|
| Date first |
1931 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
36 |
|
Pa last |
40.4 |
|
P.A. Now (θ) |
40.4° |
|
| Sep first |
3.6 |
|
Sep last |
5.474 |
|
Sep. Now (ρ) |
5.474" |
|
| Mag pri |
9.78 |
|
Mag sec |
13.61 |
|
delta mag (ΔM) |
3.83 |
|
Spectral class |
K8 (yellow-orange) |
|
| Pri motion ra |
+085 |
|
Sec motion ra |
+088 |
|
| Pri motion dec |
-247 |
|
Sec motion dec |
-248 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.012 (< 0.3, Physical double)
This double is physical.
21078+2945 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 07 48 +29 45 22 |
MLB 715 AB |
2015 |
7 |
40 |
5.5 |
9.78 |
13.61 |
3.83 |
|
<=== |
| Show |
|
|
21 07 48 +29 45 22 |
MLB 715 AC |
2002 |
3 |
336 |
25.3 |
9.78 |
14.60 |
4.82 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
104304 |
|
Tycho2 |
2185-00358-1 |
|
Gaia DR2 |
1852271205513439360 |
|
| BD |
BD+29 4321 |
|
Distance |
32.71 |
|
Distance ly |
106.7 |
|
