b Reticuli
catalogues and names | b Ret, HR 1175, HD 23817, SAO 248877, FK5: 141 |
constellation | Reticulum |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 3h 44min 12sec | DEC: -64° 48' 25'' |
position (J1900) | RA: 3h 42min 56,6sec | DEC: -65° 7' 17'' |
proper motion (J2000) | RA: 0,313 arcsec/a | DEC: 0,076 arcsec/a |
radial velocity | 51 km/s note: spectroscopic binaries note: orbital data avaible |
|
trigonometric parallax | 0,042 arcsec |
magnitude
visual magnitude | 3,85 (V on UBV Johnson system) |
spectral / color information
spectral class | K2+III |
B-V-magnitude | 1,13 |
U-B-magnitude | 1,1 |
R-I-magnitude | 0,56 |
double/multiple star system information
separation | 1480 arcsec |
mag difference (of double or brightest multiple) | 4,2 |
note | Worley (1978) update of the IDS |
note (category: spectroscopic binaries): | 1911.5d, K 5.2k/s, V0 +51.1k/s, asini 134. Unresolved by speckle interferometry 1978.96. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 3h 44min 11,982sec | DEC: -64° 48' 25,07'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: 0,049 arcsec/a | DEC: 0,076 arcsec/a | source: 25 | |
radial velocity | 51 km/s | source: 25 | ||
trigonometric parallax | 0,042 | ±0,004 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 279,24° | latitude: -43,54° | ||
GCI unit vector (J2000) | X: 0,237724 | Y: 0,353103 | Z: -0,904879 |
magnitude:
visual | 3,85 (observed) | source: 25 |
photovisual | 3,8 | source: 2 |
photographic | 4,8 | source: 2 |
spectral information:
spectral class | K0 | source: 96 | |
Morgan-Keenan | K2III | source: 25 | |
B-magnitude | 4,98 ±0,05 | B-V-magnitude | 1,13 |
U-magnitude | 6,08 ±0,05 | U-B-magnitude | 1,1 |
double/multiple star system information:
component | magnitude | spectral class | catalogue(s)/name(s) |
A | 3,85 | K0 | b Reticuli, HR 1175, HD 23817, SAO 248877 |
B | 7,85 | G0 |
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 | |
15 | FK5, FK5 Extension and FK5 Supplement |
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991 | |
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: 3h 43min 33,963sec | DEC: -64° 57' 50,21'' | ±0,01 arcsec |
position (J2000) | RA: 3h 44min 11,981sec | DEC: -64° 48' 25,32'' | |
proper motion J1950 (FK4) | RA: 0,0495 arcsec/a | DEC: 0,078 arcsec/a | ±0,003 arcsec/a in RA ±0,002 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0,0491 arcsec/a | DEC: 0,073 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 3,8 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
spectral class | K0 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 141 |
Durchmusterung | CP-65 263 |
Boss General Catalogue | 4517 |
Henry Draper Catalogue | 23817 |