e Chamaeleontis


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 Cha, HR 4583, HD 104174, SAO 256894, WDS 11596-7813
constellation Chamaeleon

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


position, motion, parallax:

position (J2000) RA: 11h 59min 37,3sec DEC: -78 13' 19''
position (J1900) RA: 11h 54min 39,4sec DEC: -77 39' 54''
proper motion (J2000) RA: -0,057 arcsec/a DEC: -0,002 arcsec/a
radial velocity 13 km/s
note: variable radial velocity
rotational velocity 205 km/s (uncertain) (variable)
dynamical parallax 0,012 arcsec

magnitude

visual magnitude 4,91
(V on UBV Johnson system)

spectral / color information

spectral class B9Vn
B-V-magnitude -0,06
U-B-magnitude -0,16
R-I-magnitude -0,05

double/multiple star system information

separation 0,9 arcsec
mag difference (of double or brightest multiple) 0,6
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): Sco-Cen assoc.

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

position, motion, parallax:

position (J2000) RA: 11h 59min 37,488sec DEC: -78 13' 18,08'' 0,19 arcsec source: 16
proper motion (J2000) RA: -0,0137 arcsec/a DEC: 0,016 arcsec/a source: 25
radial velocity 13 km/s source: 25
galactic coord. (B1950) longitude: 300,21 latitude: -15,62
GCI unit vector (J2000) X: -0,204125 Y: 0,000334 Z: -0,978945

magnitude:

visual 4,91 (observed) source: 25
photovisual 5 source: 16
photographic 5 source: 2

spectral information:

spectral class B9 source: 96
Morgan-Keenan B9Vn source: 25
B-magnitude 4,85 0,05 B-V-magnitude -0,06
U-magnitude 4,69 0,05 U-B-magnitude -0,16

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 0,4 arcsec
magnitude difference between brightest and second brightest component 0,7
position angle 203

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: 11h 57min 6,727sec DEC: -77 56' 36,07'' 0,033 arcsec
position (J2000) RA: 11h 59min 37,258sec DEC: -78 13' 18,8''
proper motion J1950 (FK4) RA: -0,0161 arcsec/a DEC: -0,005 arcsec/a 0,006 arcsec/a in RA
0,005 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0185 arcsec/a DEC: -0,002 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5 (accuracy: 2 decimals)
source of visual magnitude data Combined magnitude of component stars.

spectral information:

spectral class B9
source of spectral data Taken from the HD with M stars reclassified by Miss Cannon.

remarks for duplicity and variability

Double star - see source catalog for source

catalogues

source catalogue FK3, catalogue number: 448
Durchmusterung CP-77 772
Boss General Catalogue 16402
Henry Draper Catalogue 104174

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

position and proper motion:

position (J2000) RA: 11h 59,6min DEC: -78 13'
proper motion (J2000) RA: -0,049 arcsec/a DEC: 0,002 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 15 178 1,7'' 5,4 6,1 B9Vn HJ 4486
1991 203 0,4''

discoverer information:

discoverer code discoverer reference
HJ 4486 Herschel, J. -

notes:

note Epsilon Cha.