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[vsnet-obs 28198] Suspected or recently named binocular variables



These are southern suspected or recently named variables very bright and suitable for observation.
 
V996 Cen has been classified as an Lb star with a 0.35 V magnitude range (Hipparcos observations. GCVS lists 9.6 - 10.5 p) It's a cool C star (B-V = 3) and its amplitude seems to be greater since my observing records only show it rising:
 
CENV0996     20000312.3      77    OSE
CENV0996     20000318.2      75    OSE
CENV0996     20000325.1      75    OSE
CENV0996     20000402.2      75    OSE
CENV0996     20000422.0      74    OSE
CENV0996     20000511.0      73    OSE
CENV0996     20000603.1      72    OSE
 
NSV 6507  (HD 121658) is located near V996 cen and shares the same features with it: a C star, very red (B-V = 2.9) and classified as an Lb. The GCVS range is photographic: 9.8 - 10.5 p. It is also very similar in brightness since both are 7th magnitude stars.
 
NSV06507      20000312.3      73    OSE
NSV06507      20000318.2      74    OSE
NSV06507      20000325.1      74    OSE
NSV06507      20000402.2      75    OSE
NSV06507      20000421.1      74    OSE
NSV06507      20000511.0      74    OSE
NSV06507      20000603.1      76    OSE
 
V528 Car is a red supergiant (M2Ib, B-V= 2.0) that shows a 0.21 mag. amplitude according to the Hipparcos Catalogue. The range is too small for visual observation but I'm monitoring it in order to find a possible greater range than the one given, as in the case of the forementioned variables. However it seems it's not the case.
 
CARV0528      20000216.2      67    OSE
CARV0528      20000222.1      66    OSE
CARV0528      20000303.0      66    OSE
CARV0528      20000312.1      66    OSE
CARV0528      20000318.2      66    OSE
CARV0528      20000325.1      67    OSE
CARV0528      20000204.1      66    OSE
CARV0528      20000414.0      65    OSE
CARV0528      20000422.0      65    OSE
CARV0528      20000506.0      66    OSE
CARV0528      20000603.0      66    OSE
 
Another small amplitude (0.20 according to HIP) variable is the red giant ( M3-M4III, B-V = 1.7 ) classified as V1086 Sco.
 
SCOV1086      19980702.1      67    OSE
SCOV1086      19980720.0      68    OSE
SCOV1086      19980729.0      67    OSE
SCOV1086      19980813.1     67    OSE
SCOV1086      19980815.1      67    OSE
SCOV1086      19980816.9      67    OSE
SCOV1086      19980826.0     67    OSE
SCOV1086      19990611.0      67    OSE
SCOV1086      19990920.0      68    OSE
SCOV1086      19991017.0      66    OSE
SCOV1086      20000326.3      68    OSE
SCOV1086      20000507.3      68    OSE
SCOV1086      20000603.1      67    OSE
 
NSV06021 in Musca ( HD 112094 ) is the last one I have. Another red supergiant ( M2Iab, B-V = 2.0 ) GCVS gives the range 9.4 - 10.0 p and the possible type as SRc. I've been observing it two years and very little has happened which probably agrees with that classification.
 
NSV06021       19980331.2      70    OSE
NSV06021       19980409.2      70    OSE
NSV06021       19980420.2      70    OSE
NSV06021       19980428.2      70    OSE
NSV06021       19980501.2      70    OSE
NSV06021       19980505.0      69    OSE
NSV06021       19980516.9      69    OSE
NSV06021       19980518.0      69    OSE
NSV06021       19980612.0      69    OSE
NSV06021       19980619.0      69    OSE
NSV06021       19980625.0      69    OSE
NSV06021       19980708.1      69    OSE
NSV06021       19980708.9      69    OSE
NSV06021       19980710.1      69    OSE
NSV06021       19980718.0      69    OSE
NSV06021       19980720.0      69    OSE
NSV06021       19980729.0      69    OSE
NSV06021       19980730.0      69    OSE
NSV06021       19980813.0      67    OSE
NSV06021       19980814.0      67    OSE
NSV06021       19980826.0      67    OSE
NSV06021       19980830.0      67    OSE
NSV06021       19981230.2      67    OSE
NSV06021       19990126.2      68    OSE
NSV06021       19990130.2      68    OSE
NSV06021       19990203.1      68    OSE
NSV06021       19990214.1      68    OSE
NSV06021       19990226.1      68    OSE
NSV06021       19990313.1      68    OSE
NSV06021       19990330.0      68    OSE
NSV06021       19990406.1      68    OSE
NSV06021       19990409.1      68    OSE
NAV06021       19990410.0      68    OSE
NSV06021       19990414.0      68    OSE
NSV06021       19990416.1      69    OSE
NSV06021       19990420.0      69    OSE
NSV06021       19990424.1      69    OSE
NSV06021       19990430.0      69    OSE
NSV06021       19990508.0      70    OSE
NSV06021       19990511.0      70    OSE
NSV06021       19990515.9      70    OSE
NSV06021       19990607.0      69    OSE
NSV06021       19990610.0      69    OSE
NSV06021       19990616.9      69    OSE
NSV06021       19990620.9      69    OSE
NSV06021       19990626.9      69    OSE
NSV06021       19990706.0      69    OSE
NSV06021       19990717.0      68    OSE
NSV06021       19990722.9      69    OSE
NSV06021       19990911.0      68    OSE
NSV06021       19990920.0      67    OSE
NSV06021       20000102.3      67    OSE
NSV06021       20000119.2      67    OSE
NSV06021       20000124.2      67    OSE
NSV06021       20000205.2      67    OSE
NSV06021       20000207.2      67    OSE
NSV06021       20000216.2      67    OSE
NSV06021       20000307.1      68    OSE
NSV06021       20000312.3      68    OSE
NSV06021       20000318.2      68    OSE
NSV06021       20000325.1      67:   OSE   Cirrus.
NSV06021       20000402.2      68    OSE
NSV06021       20000414.1      67    OSE
NSV06021       20000421.1      67    OSE
NSV06021       20000507.0      67    OSE
NSV06021       20000511.0      68    OSE
NSV06021       20000522.0      68    OSE
NSV06021       20000603.1      68    OSE
 
That's all for now. 
Best wishes,
Sebasti疣 Otero.
 

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