catalogues and names

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

SKY2000 - Master Star Catalog

Smithsonian Astrophysical Observatory Star Catalog

Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names

catalogues and names

NSV 11536, HR 7135, HD 175515, SAO 124050, BD +6 3978, FK5: 3509

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

position, motion, parallax:

position (J2000)	RA: 18h 55min 27.5sec	DEC: +6° 36' 55''
position (B1900)	RA: 18h 50min 34.8sec	DEC: +6° 29' 24''
proper motion (J2000)	RA: 0.021 arcsec/a	DEC: -0.087 arcsec/a
radial velocity	23 km/s note: spectroscopic binaries note: orbital data avaible
trigonometric parallax	0.011 arcsec
galactic coordinates	longitude: 39.28°	latitude: 2.12°

magnitude

visual magnitude

5.57 (V on UBV Johnson system)

spectral / color information

spectral class	K0III
B-V-magnitude	1.04
U-B-magnitude	0.88
R-I-magnitude
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

variability information

variable star identification

11536

double/multiple star system information

note (category: spectroscopic binaries):

2994d, K 4.65k/s, V0 +23.31k/s, asini 186.

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

position, motion, parallax:

position (J2000)	RA: 18h 55min 27.459sec	DEC: +6° 36' 54.6''	±0.43 arcsec	source: 16
proper motion (J2000)	RA: 0.0013 arcsec/a	DEC: -0.091 arcsec/a		source: 25
radial velocity	23 km/s			source: 25
trigonometric parallax	0.011 arcsec		±0.001 arcsec	source: 25
galactic coord. (B1950)	longitude: 39.28°	latitude: 2.12°

magnitude:

visual	5.57 (observed)	source: 25
photovisual	5.7	source: 2
photographic	6.7	source: 16

spectral information:

spectral class	G5		source: 96
Morgan-Keenan	K0III		source: 25
B-magnitude	6.61 ±0.05	B-V-magnitude	1.04
U-magnitude	7.49 ±0.05	U-B-magnitude	0.88

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: 18h 53min 1.098sec	DEC: +6° 33' 4.49''	±0.02 arcsec
position (J2000)	RA: 18h 55min 27.454sec	DEC: +6° 36' 55.07''
proper motion B1950 (FK4)	RA: 0.0012 arcsec/a	DEC: -0.087 arcsec/a	±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0014 arcsec/a	DEC: -0.088 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.7 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	G5
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 25964
Durchmusterung	BD+06 3978
Boss General Catalogue	25964
Henry Draper Catalogue	175515

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (equinox 1950.0)

RA: 18h 53min 1.1sec

DEC: +6° 33' 4''

variability informations:

magnitute at max. brightness	2.82
magnitute at min. brightness	3.36
photometric system

spectral information

spectral class

K0

references

to a study

690730D (designation: IRC+10386)