15521+2015 HJ 2794 AB (HD 142109)
15h 52m 03.82s +20° 14' 53.5" P.A. 144.00 sep 23.2 mag 9.01,12.30 Sp G0 dist. 89.13 pc (290.74 l.y.)
| Coord 2000 |
15521+2015 |
|
Discov num |
HJ 2794 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 52 03.82 +20 14 53.5 |
|
| Date first |
1906 |
|
Date last |
2016 |
|
Obs |
14 |
|
| Pa first |
144 |
|
Pa last |
143.6 |
|
P.A. Now (θ) |
143.6° |
|
| Sep first |
23.2 |
|
Sep last |
23.197 |
|
Sep. Now (ρ) |
23.197" |
|
| Mag pri |
9.01 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
3.29 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+094 |
|
Sec motion ra |
|
|
| Pri motion dec |
-060 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
15521+2015 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 142109 |
84044 |
15 52 04 +20 14 54 |
HJ 2794 AB |
2016 |
14 |
144 |
23.2 |
9.01 |
12.30 |
3.29 |
|
<=== |
| Show |
|
84044 |
15 52 04 +20 14 54 |
HJ 2794 AC |
2015 |
13 |
9 |
23.3 |
9.01 |
13.90 |
4.89 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 142109 |
|
Constellation |
Serpens |
|
SAO |
84044 |
|
HIP |
77723 |
|
| Tycho2 |
1502-00381-1 |
|
Gaia DR2 |
1204072885773523712 |
|
HD |
142109 |
|
BD |
BD+20 3159 |
|
| Distance |
89.13 |
|
Distance ly |
290.74 |
|
