20170+4017 CNT 5
20h 16m 58.28s +40° 17' 18.0" P.A. 331.00 sep 5.9 mag 9.15,10.91 Sp OB
Coord 2000 |
20170+4017 |
|
Discov num |
CNT 5 |
|
Comp |
|
|
Coord arcsec 2000 |
20 16 58.28 +40 17 18.0 |
|
Date first |
1998 |
|
Date last |
2015 |
|
Obs |
8 |
|
Pa first |
331 |
|
Pa last |
330.7 |
|
P.A. Now (θ) |
330.7° |
|
Sep first |
5.9 |
|
Sep last |
5.89 |
|
Sep. Now (ρ) |
5.89" |
|
Mag pri |
9.15 |
|
Mag sec |
10.91 |
|
delta mag (ΔM) |
1.76 |
|
Spectral class |
OB (blue) |
|
Pri motion ra |
-001 |
|
Sec motion ra |
|
|
Pri motion dec |
-006 |
|
Sec motion dec |
|
|
Notes |
K
(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
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3155-01696-1 |
|
Gaia DR2 |
2062313282595415168 |
|