d Sextantis
catalogues and names | d Sex, 29 Sex, HR 4116, HD 90882, SAO 137600, FK5: 1270 |
constellation | Sextans |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 10h 29min 28,7sec | DEC: -2° 44' 21'' |
position (J1900) | RA: 10h 24min 23,9sec | DEC: -2° 13' 38'' |
proper motion (J2000) | RA: -0,048 arcsec/a | DEC: -0,014 arcsec/a |
radial velocity | 19 km/s note: variable radial velocity |
|
rotational velocity | 191 km/s (uncertain) (variable) |
magnitude
visual magnitude | 5,21 (V on UBV Johnson system) |
spectral / color information
spectral class | B9.5V |
B-V-magnitude | -0,06 |
U-B-magnitude | -0,12 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 10h 29min 28,704sec | DEC: -2° 44' 20,84'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: -0,0032 arcsec/a | DEC: -0,014 arcsec/a | source: 25 | |
radial velocity | 19 km/s | source: 25 | ||
galactic coord. (B1950) | longitude: 248,43° | latitude: 44,59° | ||
GCI unit vector (J2000) | X: -0,921952 | Y: 0,384345 | Z: -0,047788 |
magnitude:
visual | 5,21 (observed) | source: 25 |
photovisual | 5,2 | source: 2 |
photographic | 4,8 | source: 16 |
spectral information:
spectral class | B9 | source: 96 | |
Morgan-Keenan | B9.5V | source: 25 | |
B-magnitude | 5,15 ±0,05 | B-V-magnitude | -0,06 |
U-magnitude | 5,03 ±0,05 | U-B-magnitude | -0,12 |
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 | |
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 | |
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: 10h 26min 56,3sec | DEC: -2° 28' 57,21'' | ±0,007 arcsec |
position (J2000) | RA: 10h 29min 28,703sec | DEC: -2° 44' 20,84'' | |
proper motion J1950 (FK4) | RA: -0,0034 arcsec/a | DEC: -0,018 arcsec/a | ±0,002 arcsec/a in RA ±0,002 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: -0,0032 arcsec/a | DEC: -0,014 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 5,2 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
spectral class | B9 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 1270 |
Durchmusterung | BD-02 3155 |
Boss General Catalogue | 14403 |
Henry Draper Catalogue | 90882 |