20128-3454 HDS2881

 
 
20h 12m 49.85s -34 54' 23.1" P.A. 12.00 sep 15.5 mag 10.18,11.05 Sp K1III dist. 819.67 pc (2673.76 l.y.)
 
 
Coord 2000
20128-3454
Discov num
HDS2881
Comp
Coord arcsec 2000
20 12 49.85 -34 54 23.1
Date first
1912
Date last
2015
Obs
10
Pa first
21
Pa last
12
P.A. Now (θ)
12°
Sep first
17.9
Sep last
15.5
Sep. Now (ρ)
15.5"
Mag pri
10.18
Mag sec
11.05
delta mag (ΔM)
0.87
Spectral class
K1III (yellow-orange)
Pri motion ra
-010
Sec motion ra
-035
Pri motion dec
-005
Sec motion dec
-020
Notes
U (Proper motion indicates non-physical)
Visually invisible, K-band or other infrared star rPM=0.723
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
11.6
Precise sep
15.497
Constellation
Sagittarius
HIP
99605
Tycho2
7449-01417-1
Gaia DR2
17248760704
HD
191756
CD
CD-3513988
CP
CP-35 8764
Distance
819.67
Distance ly
2673.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20128-3454 HDS2881 1998 7 13 15.8 10.18 11.05 K1III LD 201249.85-345423.1
20128-3454 HDS2881 1999 8 13 15.8 10.18 11.05 K1III LD 201249.85-345423.1
20128-3454 HDS2881 2010 9 12 15.2 10.18 11.05 K1III L 201249.85-345423.1
20128-3454 HDS2881 2015 10 12 15.5 10.18 11.05 K1III L 201249.85-345423.1

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