WDS 19533+0820 AG 241 (HD 188125) : NOTES
 
 
discov_num notes refcode
AG 241 TDT1826. An incorrect cross reference (BD+07 4270 rather than 4278)
resulted in the AG pair being assigned incorrect coordinates and its
later "rediscovery" as a Tycho pair. The merged pair was assigned the TYC2002
AG discovery designation (as this long preceded the TDT designation),
but together with the correct WDS designation.
 
 
REFERENCES
 
 
refcode metd author reference
TYC2002 Ht - Fabricius, C., Hog, E., Makarov, V.V., Mason, B.D., Wycoff, G.L., & Urban, S.E. 2002A&A...384..180F
TYC2002 A&A 384, 180-189, 2002
TYC2002 (re-reduction of Tycho data)
 
 
DISCOVERER
 
 
idgroup discov author
1 AG Astronomische Gesellschaft (see also ref codes KR and WFD)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19533+0820 AG 241 2005 10 214 8.9 9.83 10.00 A0 ND 195319.36+082024.7
19533+0820 AG 241 2012 13 215 8.7 9.83 10.00 A0 ND 195319.36+082024.7
19533+0820 AG 241 2017 15 217 8.6 10.40 10.56 A0 N 195319.36+082024.7

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