catalogues and names

The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

SKY2000 - Master Star Catalog

Smithsonian Astrophysical Observatory Star Catalog

catalogues and names

catalogues and names	j3Hya, HR 4171, HD 92214, SAO 156122, BD -16 3100, FK5: 2850
constellation	Hydra

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

note (category: star names):

Phi in most catalogues. Becvar calls it Phi1 but Delalande- Baily call it Phi3; their Phi1 is a 7.12 mag. star 4 min. prec., HD 91369.

position, motion, parallax:

position (J2000)	RA: 10h 38min 35sec	DEC: -16° 52' 36''
position (B1900)	RA: 10h 33min 42.5sec	DEC: -16° 21' 26''
proper motion (J2000)	RA: -0.097 arcsec/a	DEC: 0.027 arcsec/a
radial velocity	18 km/s note: spectroscopic binaries, single lined spectra note: orbital data avaible
rotational velocity	<17 km/s (uncertain) (variable)
trigonometric parallax	0.014 arcsec
galactic coordinates	longitude: 262.88°	latitude: 35.46°

magnitude

visual magnitude

4.91 (V on UBV Johnson system)

spectral / color information

spectral class	G8IIIFe-0.5
B-V-magnitude	0.92
U-B-magnitude	0.68
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

double/multiple star system information

note (category: spectroscopic binaries):

1200d, K 4.0k/s, V0 +16.2k/s, asini 65.7.

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

position, motion, parallax:

position (J2000)	RA: 10h 38min 34.961sec	DEC: -16° 52' 35.9''	±0.22 arcsec	source: 15
proper motion (J2000)	RA: -0.0068 arcsec/a	DEC: 0.026 arcsec/a		source: 25
radial velocity	18 km/s			source: 25
trigonometric parallax	0.014 arcsec		±0.001 arcsec	source: 25
galactic coord. (B1950)	longitude: 262.89°	latitude: 35.46°

magnitude:

visual	4.91 (observed)	source: 25
photovisual	5.1	source: 2
photographic	6.1	source: 2

spectral information:

spectral class	K0		source: 96
Morgan-Keenan	G8IIIFe-0.5		source: 25
B-magnitude	5.83 ±0.05	B-V-magnitude	0.92
U-magnitude	6.51 ±0.05	U-B-magnitude	0.68

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 (B1950)	RA: 10h 36min 8.64sec	DEC: -16° 36' 59.36''	±0.044 arcsec
position (J2000)	RA: 10h 38min 34.948sec	DEC: -16° 52' 35.89''
proper motion B1950 (FK4)	RA: -0.0073 arcsec/a	DEC: 0.021 arcsec/a	±0.003 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.007 arcsec/a	DEC: 0.026 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.1 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	K0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 14631
Durchmusterung	BD-16 3100
Boss General Catalogue	14631
Henry Draper Catalogue	92214