pi Andromedae

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

position, motion, parallax:

position (J2000)	RA: 0h 36min 52.9sec	DEC: +33° 43' 10''
position (B1900)	RA: 0h 31min 32.2sec	DEC: +33° 10' 8''
proper motion (J2000)	RA: 0.015 arcsec/a	DEC: -0.004 arcsec/a
radial velocity	9 km/s note: spectroscopic binaries, single lined spectra note: orbital data avaible
rotational velocity	34 km/s (uncertain) (variable)
trigonometric parallax	-0.003 arcsec
galactic coordinates	longitude: 119.47°	latitude: -29.05°

note (category: radial and/or rotational velocities):

The secondary has evidently been seen only by J. A. Pearce in 1936.

magnitude

visual magnitude

4.36
(V on UBV Johnson system)

spectral / color information

spectral class	B5V
B-V-magnitude	-0.14
U-B-magnitude	-0.55
R-I-magnitude

variability information

variable star identification

227

double/multiple star system information

number of components of multiple star system	3
separation	35.2 arcsec
mag difference (of double or brightest multiple)	4.2
component ID	AB

note (category: double and multiple data):

AB 103000?y. Component B spectrum A6V or Am(A3/F0/F2), RV +11.9k/s. Component C, 11.4v, F3 at 55" optical.

note (category: spectroscopic binaries):

ADS 513A, 143.6065d, K 47.5k/s, V0 +8.35k/s, msin3i 27.1, asini 77.6. Unresolved by speckle interferometry.

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

position, motion, parallax:

position (J2000)	RA: 0h 36min 52.858sec	DEC: +33° 43' 9.63''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: 0.0012 arcsec/a	DEC: -0.004 arcsec/a		source: 25
radial velocity	9 km/s			source: 25
galactic coord. (B1950)	longitude: 119.48°	latitude: -29.05°

magnitude:

visual	4.36 (observed)	source: 25
photovisual	4.4	source: 2

spectral information:

spectral class	B3		source: 96
Morgan-Keenan	B5V		source: 25
B-magnitude	4.22 ±0.05	B-V-magnitude	-0.14
U-magnitude	3.67 ±0.05	U-B-magnitude	-0.55

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	35.9 arcsec
magnitude difference between brightest and second brightest component	4.25
position angle	173 °

component	magnitude	spectral class	catalogue(s)/name(s)
A	4.36	B3	p Andromedae, 29 And, HR 154, HD 3369, SAO 54033
B	8.62	-

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
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: 0h 34min 12.186sec	DEC: +33° 26' 39.75''	±0.005 arcsec
position (J2000)	RA: 0h 36min 52.869sec	DEC: +33° 43' 9.57''
proper motion B1950 (FK4)	RA: 0.0013 arcsec/a	DEC: 0 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0014 arcsec/a	DEC: -0.004 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 the "Henry Draper Catalogue".

spectral information:

spectral class	B3
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 18
Durchmusterung	BD+32 101
Boss General Catalogue	729
Henry Draper Catalogue	3369

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

position and proper motion:

position (J2000)	RA: 0h 36.9min	DEC: +33° 43'
proper motion (J2000)	RA: 0.015 arcsec/a	DEC: -0.004 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
AB	1821	24	173°	35.9''	4.36	8.61	B5V	H 17
AC	1879	4	357°	55.2''	4.36	13.01	B3	H 17

discoverer information:

discoverer code	discoverer	reference
H 17	Herschel, W.	-

notes:

note	Pi And. H V 17. BDS 263, HJ 1030 identical. A is a spectroscopic binary, P = 143.6d. B is BD +32@102.

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

position:

position (equinox 1950.0)

RA: 0h 34min 12.2sec

DEC: +33° 26' 40''

variability informations:

magnitute at max. brightness	4.2
magnitute amplitude	0.04
photometric system

spectral information

spectral class

references

to a study

710766 (designation: PI AND)

miscanellous

There are notes in the published catalog (Kukarkin et al.(1982)).

catalogues and names	p And, NSV 00227, 29 And, HR 154, HD 3369, SAO 54033, BD +32 101, FK5: 18, WDS 00369+3343A
constellation	Andromeda