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	15 UMa, HR 3619, HD 78209, SAO 27136, BD +52 1365, FK5: 2721
constellation	Ursa Major

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

position, motion, parallax:

position (J2000)	RA: 9h 8min 52.3sec	DEC: +51° 36' 17''
position (B1900)	RA: 9h 1min 49.1sec	DEC: +52° 0' 30''
proper motion (J2000)	RA: -0.137 arcsec/a	DEC: -0.03 arcsec/a
radial velocity	0 km/s
rotational velocity	37 km/s (uncertain) (variable)
galactic coordinates	longitude: 166.57°	latitude: 42.02°

magnitude

visual magnitude

4.48 (V on UBV Johnson system)

spectral / color information

spectral class	F0IVm vs
B-V-magnitude	0.27
U-B-magnitude	0.12
R-I-magnitude

note (category: spectra):

Violet part of spectrum indicates luminosity III; G-band region, V. Also classified A1m.

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

position, motion, parallax:

position (J2000)	RA: 9h 8min 52.227sec	DEC: +51° 36' 16.79''	±0.43 arcsec	source: 16
proper motion (J2000)	RA: -0.015 arcsec/a	DEC: -0.028 arcsec/a		source: 25
radial velocity	0 km/s			source: 25
galactic coord. (B1950)	longitude: 166.57°	latitude: 42.02°

magnitude:

visual	4.48 (observed)	source: 25
photovisual	4.5	source: 2
photographic	4.6	source: 16

spectral information:

spectral class	A3		source: 96
Morgan-Keenan	F0IVmvs		source: 25
B-magnitude	4.75 ±0.05	B-V-magnitude	0.27
U-magnitude	4.87 ±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
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 (B1950)	RA: 9h 5min 21.316sec	DEC: +51° 48' 28.27''	±0.018 arcsec
position (J2000)	RA: 9h 8min 52.27sec	DEC: +51° 36' 16.35''
proper motion B1950 (FK4)	RA: -0.0147 arcsec/a	DEC: -0.039 arcsec/a	±0.003 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0145 arcsec/a	DEC: -0.034 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.5 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	A3p
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 12604
Durchmusterung	BD+52 1365
Boss General Catalogue	12604
Henry Draper Catalogue	78209