20421+2319 BKO 843 AC
20h 42m 04.99s +23° 18' 51.6" P.A. 346.00 sep 9.5 mag 13.30,14.60
| Coord 2000 |
20421+2319 |
|
Discov num |
BKO 843 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 42 04.99 +23 18 51.6 |
|
| Date first |
1997 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
344 |
|
Pa last |
345.5 |
|
P.A. Now (θ) |
345.5° |
|
| Sep first |
9.5 |
|
Sep last |
9.512 |
|
Sep. Now (ρ) |
9.512" |
|
| Mag pri |
13.30 |
|
Mag sec |
14.60 |
|
delta mag (ΔM) |
1.3 |
|
Spectral class |
|
|
| Pri motion ra |
+009 |
|
Sec motion ra |
+011 |
|
| Pri motion dec |
+028 |
|
Sec motion dec |
+012 |
|
| Notes |
|
|
rPM=0.548
Nature of this double is uncertain.
20421+2319 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 42 05 +23 18 52 |
BKO 843 AB |
2015 |
8 |
299 |
4.9 |
13.30 |
15.10 |
1.80 |
|
|
| Show |
|
|
20 42 05 +23 18 52 |
BKO 843 AC |
2015 |
8 |
346 |
9.5 |
13.30 |
14.60 |
1.30 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
Gaia DR2 |
1819080935201966592 |
|
