WDS 20213+0250 HLD 158 (HD 193651) : NOTES
 
 
discov_num notes refcode
HLD 158 Misidentified in IDS as BD+02 4138 rather than +02 4139. Position and
proper motion corrected.
Pair called "too close" by van den Bos in 7 nights in 1961 and 1962. Wor1967b
Confirms comment by Couteau that BD+02 4138 7s s is single. Mrl1968a
Meas attributed to ADS 13738 = BD+02 4138 appear to match this pair. Mrl1970d
This is BD+02 4139, observed my Morel (1968). Coordinates are those
given by Aitken for ADS 13738 = HLD 158 = BD+02 4138 -7s, which was
found to be single. Probably ADS 13738 = BD+02 4139. Cou1970c
 
 
REFERENCES
 
 
refcode metd author reference
Cou1970c Ma j Couteau, P. 1970A&AS....3...51C
Cou1970c +Pa A&AS 3, 51, 1970
Mrl1968a Ma - Morel, P.J. 1968JO.....51..349M
Mrl1968a J. Obs. 51, 349, 1968
Mrl1970d Ma j Morel, P.J. 1970A&AS....3...71M
Mrl1970d A&AS 3, 71, 1970
Msn2017c orb - Mason, B.D. & Hartkopf, W.I. 2017IAUDS.192....1M
Msn2017c Inf. Circ. 192, 1, 2017
Wor1967b Ma j Worley, C.E. 1967PUSNO..18....1W
Wor1967b Pub. USNO 18, Pt. 6, 1967
 
 
DISCOVERER
 
 
idgroup discov author
1 HLD Holden, E.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20213+0250 HLD 158 2001 61 48 1.0 9.71 9.78 G0 NO 202117.43+025021.9
20213+0250 HLD 158 2006 62 45 1.1 9.71 9.78 G0 NO 202117.43+025021.9
20213+0250 HLD 158 2007 63 44 1.1 9.71 9.78 G0 NO 202117.43+025021.9
20213+0250 HLD 158 2015 64 144 0.2 9.71 9.78 G0 NO 202117.43+025021.9
20213+0250 HLD 158 2016 65 42 1.2 9.71 9.78 G0 NO 202117.43+025021.9
20213+0250 HLD 158 2017 68 42 1.2 9.71 9.78 G0 NO 202117.43+025021.9

If you need more information about this double, apply for a data request form to the WDS.