NSV 15363

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

position, motion, parallax:

position (J2000)	RA: 1h 42min 17.8sec	DEC: +58° 37' 40''
position (B1900)	RA: 1h 35min 39.3sec	DEC: +58° 7' 20''
proper motion (J2000)	RA: 0.019 arcsec/a	DEC: -0.01 arcsec/a
radial velocity	-4 km/s note: suspected variable radial velocity
rotational velocity	35 km/s (uncertain) (variable)
galactic coordinates	longitude: 129.52°	latitude: -3.59°

magnitude

visual magnitude

6.37
(V on UBV Johnson system)

spectral / color information

note (category: spectra):

Also classified B7V.

double/multiple star system information

number of components of multiple star system	3
separation	20.1 arcsec
mag difference (of double or brightest multiple)	2.4
component ID	AB

note (category: double and multiple data):

Third component mag. diff 4.74v, 110" from A. Component B is K2V, optical.

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

position, motion, parallax:

magnitude:

spectral information:

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	19.8 arcsec
magnitude difference between brightest and second brightest component	2.5
position angle	168 °

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
19	WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
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: 1h 38min 57.569sec	DEC: +58° 22' 33.28''	ą0.031 arcsec
position (J2000)	RA: 1h 42min 17.794sec	DEC: +58° 37' 39.66''
proper motion B1950 (FK4)	RA: 0.0025 arcsec/a	DEC: -0.005 arcsec/a	ą0.005 arcsec/a in RA ą0.005 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0025 arcsec/a	DEC: -0.01 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	6.2 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	B9
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000)	RA: 1h 42.3min	DEC: +58° 38'
proper motion (J2000)	RA: 0.015 arcsec/a	DEC: -0.006 arcsec/a

double/multiple star system information:

component	year	number of measures	position angle	angular separation	magnitude of 1st component	magnitude of 2nd component	spectral class(es)	discoverer code
-	1901	9	168°	19.8''	6.3	8.8	B7III Am	HJ 1088

discoverer information:

discoverer code	discoverer	reference
HJ 1088	Herschel, J.	-

notes:

note	Proper motion of B +006 +001.