e Volantis


The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog

  4. The Washington Visual Double Star Catalog, 1996.0


catalogues and names e Vol, HR 3223, HD 68520, SAO 250128, WDS 08079-6837
constellation Volans

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)


position, motion, parallax:

position (J2000) RA: 8h 7min 55,8sec DEC: -68 37' 2''
position (J1900) RA: 8h 7min 36,4sec DEC: -68 19' 24''
proper motion (J2000) RA: -0,026 arcsec/a DEC: 0,025 arcsec/a
radial velocity 10 km/s
note: spectroscopic binaries
note: orbital data avaible
rotational velocity 38 km/s (uncertain) (variable)

magnitude

visual magnitude 4,35
(V on UBV Johnson system)

spectral / color information

spectral class B6IV
B-V-magnitude -0,11
U-B-magnitude -0,46
R-I-magnitude -0,09

double/multiple star system information

separation 6 arcsec
mag difference (of double or brightest multiple) 3,6
note Worley (1978) update of the IDS
note (category: spectroscopic binaries): 14.1683d, K 66.7k/s, V0 +9.7k/s, asini 13.0. Possibly secondary spectrum.

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 8h 7min 55,833sec DEC: -68 37' 0,07'' 0,19 arcsec source: 16
proper motion (J2000) RA: -0,0052 arcsec/a DEC: 0,049 arcsec/a source: 25
radial velocity 10 km/s source: 25
galactic coord. (B1950) longitude: 281,63 latitude: -18,56
GCI unit vector (J2000) X: -0,193118 Y: 0,309262 Z: -0,931162

magnitude:

visual 4,35 (observed) source: 25
photovisual 4,2 source: 16
photographic 4,3 source: 2

spectral information:

spectral class B5 source: 96
Morgan-Keenan B6IV source: 25
B-magnitude 4,24 0,05 B-V-magnitude -0,11
U-magnitude 3,78 0,05 U-B-magnitude -0,46

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 5,4 arcsec
magnitude difference between brightest and second brightest component 3,6
position angle 23

sources:

2 HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
25 Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96 SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (J1950) RA: 8h 7min 46,613sec DEC: -68 28' 12,53'' 0,024 arcsec
position (J2000) RA: 8h 7min 55,807sec DEC: -68 37' 1,89''
proper motion J1950 (FK4) RA: -0,0042 arcsec/a DEC: 0,021 arcsec/a 0,005 arcsec/a in RA
0,004 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0048 arcsec/a DEC: 0,025 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,5 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class B5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue GC, catalogue number: 11098
Durchmusterung CP-68 736
Boss General Catalogue 11098
Henry Draper Catalogue 68520

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 8h 7,9min DEC: -68 37'
proper motion (J2000) RA: -0,03 arcsec/a DEC: 0,029 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
- 1835 10 23 6,7'' 4,5 8,1 B6IV RMK 7
1991 - 5,4''

discoverer information:

discoverer code discoverer reference
RMK 7 - -

notes:

note Epsilon Vol. A is a spectroscopic binary.