18580+4407 A 587 BC
18h 57m 55.98s +44° 07' 00.0" P.A. 188.00 sep 1.8 mag 10.61,11.54 Sp F8
| Coord 2000 |
18580+4407 |
|
Discov num |
A 587 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 57 55.98 +44 07 00.0 |
|
| Date first |
1903 |
|
Date last |
2017 |
|
Obs |
12 |
|
| Pa first |
187 |
|
Pa last |
187.7 |
|
P.A. Now (θ) |
187.7° |
|
| Sep first |
1.8 |
|
Sep last |
1.811 |
|
Sep. Now (ρ) |
1.811" |
|
| Mag pri |
10.61 |
|
Mag sec |
11.54 |
|
delta mag (ΔM) |
0.93 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
-008 |
|
| Pri motion dec |
+012 |
|
Sec motion dec |
+012 |
|
| Notes |
|
|
Nature of this double is uncertain.
18580+4407 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 57 59 +44 06 34 |
A 587 AB |
2018 |
16 |
307 |
42.3 |
9.55 |
10.54 |
0.99 |
|
|
| Show |
|
|
18 57 56 +44 07 00 |
A 587 BC |
2017 |
12 |
188 |
1.8 |
10.61 |
11.54 |
0.93 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Tycho2 |
3131-01374-1 |
|
Gaia DR2 |
2106601469217572992 |
|
