Thread: VY Canis majori
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  #5  
Old 08-01-2009, 10:06 AM
Coen
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Join Date: Oct 2008
Location: Adelaide, Australia
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Link to SIMBAD entry:
http://simbad.u-strasbg.fr/simbad/si...bmit=submit+id

Also note that it appears to be a multiple star too (from CdC):
07h23m00.43s -25°46'01.0" V* HIP 35793 T:L mMax: 7.44 mMin: 8.76 P: 0.0000000000 Mepoch: 0.0000000000 sp:M3/M4II: desc:VY_CMa NewVar: HvarType:U mV: 8.08 maxMag:7.444 med_Hp:7.961 minMag:8.762 A:1.099 e_A:0.137 max_lit:6.5 min_lit:9.6
07h23m00.42s -25°46'01.1" D* TDSC 19197 A-B m1: 9.75 m2:10.34 sep: 1.0 pa:261 Tycho2:6541 02525 1 WDS:07230-2546 HD:58061
07h23m00.40s -25°46'00.8" D* WDS B 719 AB m1: 9.75 m2:10.34 sep: 1.0 pa:261 date:1991.00 sp: 1 M3/4III; desc:ND BD-25.04441
07h23m00.40s -25°46'00.8" D* WDS SEE 78 AB-C m1: 7.50 m2: sep: 2.6 pa:290 date:1970.00 sp: 1 desc BD-25.04441
07h23m00.40s -25°46'00.8" D* WDS SEE 78 AB-D m1: 7.50 m2: sep: 3.5 pa:349 date:1936.00 sp: 1 desc:
07h23m00.40s -25°46'00.8" D* WDS SEE 78 AB-E m1: 7.50 m2: sep: 6.9 pa: 31 date:1900.00 sp: 1 desc:
07h23m00.40s -25°46'00.8" D* WDS SEE 78 AB-F m1: 7.50 m2: sep: 1.0 pa:103 date:1970.00 sp: 1 desc:
07h23m00.43s -25°46'01.1" * ASCC 1642287 mV: 9.09 mB:10.63 sp:M3/M4II: pmRA: 0.002 pmDE:-0.007 px:0.0016 Dist:2038.5 ly TYC:6541025251 HIP: 35793 HD: 58061 DM:-2504441
07h23m00.36s -25°46'01.2" * HIC 35793 mV: 8.60 b-v: 2.20 sp:M3/M4II: pmRA:-0.011 pmDE: 0.004 Epoch: 2000.00 px:0.0000 desc: N BD: CD:CD -25 4441 CPD:CPD-25 2286 HD: 58061 FK:S 7681 AG: SAO:173591 CCDM:07230-2546 Vname:VY CMa VarType: Period:0.0 Vmax:6.5 Vmin:9.6 q_Vmax:2.0 PA:200.0 Sep:0.6 Dmag:1.3 Hp:8.4 Vmag:8.6 e_Vmag:0.5
07h23m00.44s -25°46'01.0" * HIP 35793 mV: 8.08 b-v: 2.06 sp:M3/M4II: pmRA: 0.010 pmDE: 0.001 px:0.0018 Dist:1812.0 ly BT:11.601 VT:9.16 V-I:3.08 Hpmag:7.9607 Hpscat:0.396 VarPer:0.0 pa:0.0 sep:0.0 Dmag:0.0
07h23m00.15s -25°45'59.0" * HIC 35793 mV: 7.80 pmRA:-0.035 pmDE: 0.022 CCDM:07230-2546 Note1: Note1: DM:CD -25 4441 HD: 58061 AG: 173591 IDS:07189S2535 A ADS: 6033 rComp: Comp:A PA:0.0 Sep:0.0 Obs:0.0
07h23m00.15s -25°45'59.0" * HIC 35793 mV: 9.10 pmRA:-0.035 pmDE: 0.022 CCDM:07230-2546 Note1: Note1: DM: HD: AG: IDS:07189S2535 B ADS: 6033 rComp: Comp:B PA:200.0 Sep:0.6 Obs:1959.0
07h23m00.44s -25°46'01.0" * Sky CD-25.04441 mV: 8.93 b-v: 2.04 sp:Ma pmRA: 0.010 pmDE: 0.001 HD:58061 SAO:173591 Sep:0.8 Dmag:1.3
07h23m00.40s -25°46'01.4" * TYC 6541-2525-1 mV: 9.75 b-v: 2.11 mB:12.23 pmRA: 0.001 pmDE:-0.009

(cut and paste the above into notepad without word wrap it might then just be readable)

Seems to have components A through F and as indicated in a previous post there is nebulosity around too.

Last edited by Coen; 08-01-2009 at 10:18 AM.
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