17506-4019 EGN 21 AB (HD 162020)
17h 50m 38.34s -40° 19' 05.8" P.A. 24.00 sep 1.0 mag 9.10, Sp K3V dist. 29.43 pc (96 l.y.)
| Coord 2000 |
17506-4019 |
|
Discov num |
EGN 21 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 50 38.34 -40 19 05.8 |
|
| Date first |
2003 |
|
Date last |
2021 |
|
Obs |
6 |
|
| Pa first |
183 |
|
Pa last |
23.5 |
|
P.A. Now (θ) |
23.5° |
|
| Sep first |
1.4 |
|
Sep last |
0.992 |
|
Sep. Now (ρ) |
0.992" |
|
| Mag pri |
9.10 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
K3V (yellow-orange) |
|
| Pri motion ra |
+021 |
|
Sec motion ra |
|
|
| Pri motion dec |
-025 |
|
Sec motion dec |
|
|
| Notes |
N
U
K
(See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
17506-4019 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 162020 |
|
17 50 38 -40 19 06 |
EGN 21 AB |
2021 |
6 |
24 |
1.0 |
9.10 |
|
|
|
<=== |
| Show |
|
|
17 50 38 -40 19 06 |
EGN 21 AC |
2005 |
5 |
229 |
5.0 |
9.10 |
|
|
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 162020 |
|
Constellation |
Scorpius |
|
HIP |
87330 |
|
Tycho2 |
7890-01378-1 |
|
| Gaia DR2 |
5957920668132624256 |
|
HD |
162020 |
|
CD |
CD-4011894 |
|
CP |
CP-40 8144 |
|
| Distance |
29.43 |
|
Distance ly |
96 |
|
