b Pictoris
catalogues and names | b Pic, NSV 16683, HR 2020, HD 39060, SAO 234134 |
constellation | Pictor |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 5h 47min 17,1sec | DEC: -51° 3' 59'' |
position (J1900) | RA: 5h 44min 54,9sec | DEC: -51° 6' 9'' |
proper motion (J2000) | RA: 0,011 arcsec/a | DEC: 0,085 arcsec/a |
radial velocity | 20 km/s note: suspected variable radial velocity |
|
rotational velocity | 139 km/s (uncertain) (variable) | |
trigonometric parallax | 0,061 arcsec |
magnitude
visual magnitude | 3,85 (V on UBV Johnson system) |
spectral / color information
spectral class | A5V |
B-V-magnitude | 0,17 |
U-B-magnitude | 0,1 |
R-I-magnitude | 0,16 |
note (category: spectra): | Shell star. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 5h 47min 17,099sec | DEC: -51° 3' 59,71'' | ±0,19 arcsec | source: 16 |
proper motion (J2000) | RA: 0,001 arcsec/a | DEC: 0,079 arcsec/a | source: 25 | |
radial velocity | 20 km/s | source: 25 | ||
trigonometric parallax | 0,061 | ±0,006 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 258,37° | latitude: -30,61° | ||
GCI unit vector (J2000) | X: 0,034847 | Y: 0,62745 | Z: -0,777877 |
magnitude:
visual | 3,85 (observed) | source: 25 |
photovisual | 3,9 | source: 2 |
photographic | 4 | source: 2 |
spectral information:
spectral class | A3 | source: 96 | |
Morgan-Keenan | A5V | source: 25 | |
B-magnitude | 4,02 ±0,05 | B-V-magnitude | 0,17 |
U-magnitude | 4,12 ±0,05 | U-B-magnitude | 0,1 |
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 | |
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: 5h 46min 5,935sec | DEC: -51° 5' 1,75'' | ±0,027 arcsec |
position (J2000) | RA: 5h 47min 17,115sec | DEC: -51° 3' 59,17'' | |
proper motion J1950 (FK4) | RA: 0,0005 arcsec/a | DEC: 0,087 arcsec/a | ±0,006 arcsec/a in RA ±0,004 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0,0011 arcsec/a | DEC: 0,086 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 3,9 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
spectral class | A3 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | GC, catalogue number: 7287 |
Durchmusterung | CD-51 1620 |
Boss General Catalogue | 7287 |
Henry Draper Catalogue | 39060 |