18018-2805 RST2020

18h 01m 48.33s -28 05' 12.9" P.A. 171 sep 3.6 mag 9.99,14.20 Sp K5

Coord 2000
18018-2805
Discov num
RST2020
Comp
Coord arcsec 2000
18 01 48.33 -28 05 12.9
Date first
1934
Date last
2000
Obs
3
Pa first
172
Pa last
171
P.A. Now (θ)
171°
Sep first
3.3
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
9.99
Mag sec
14.20
delta mag (ΔM)
4.21
Spectral class
K5 (yellow-orange)
Pri motion ra
+002
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes


Nature of this double is uncertain.



OTHER CATALOGS AND DESIGNATIONS

Precise pa
171.4
Precise sep
3.57
Constellation
Sagittarius
Tycho2
6850-03271-1
HD
316967
last precise pa
171.4
last precise sep
3.57




WDS HISTORIC DATA

coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18018-2805 RST2020 1940 2 171 3.3 9.99 14.20 180148.33-280512.9
18018-2805 RST2020 2000 3 171 3.6 9.99 14.20 180148.33-280512.9

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