12550-0219 SLN 72

12^h 54^m 58.07^s -02° 18' 37.8" P.A. 13.00 sep 30.9 mag 16.50,19.80 Sp DA

Coord 2000	12550-0219	Discov num	SLN 72	Comp		Coord arcsec 2000	12 54 58.07 -02 18 37.8
Date first	1956	Date last	2016	Obs	4
Pa first	13	Pa last	13	P.A. Now (θ)	13°
Sep first	30.7	Sep last	30.868	Sep. Now (ρ)	30.868"
Mag pri	16.50	Mag sec	19.80	delta mag (ΔM)	3.3	Spectral class	DA (white dwarf)
Pri motion ra	-013	Sec motion ra	-007
Pri motion dec	-056	Sec motion dec	-057
Notes	V (Proper motion indicates physical)

rPM=0.106 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Virgo

Gaia DR2

3682458814461982592

WDS 12550-0219 SLN 72 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
SLN		Sloan Digital Sky Survey	...................
Sln2009	Es j	Abazajian, K.N., Adelman-McCarthy, J.K., Agueros, M.A., Allam, S.S.,	2009ApJS..182..543A
Sln2009		Allende Prieto, C., An, D., Anderson, K.S.J., Anderson, S.F., Annis J.,
Sln2009		Bahcall, N.A., Bailer-Jones, C.A.L., Barentine, J.C., et al.
Sln2009		ApJS 182, 543, 2009 (The SDSS Photometric Catalog, Release 7)
Sln2012	Es -	Ahn C.P., Alexandroff R., Allende Prieto C., Anderson S.F., Anderton T.,	2012ApJS..203...21A
Sln2012		Andrews B.H., Aubourg E., Bailey S., Balbinot E., Barnes R., Bautista J.,
Sln2012		Beers T.C., et al.
Sln2012		ApJS 203, 21, 2012 (The SDSS Photometric Catalog, Release 9)
Sln2014	Es -	Baxter, R.B., Dobbie, P.D., Parker, Q.A., Casewell, S.L., Lodieu, N.,	2014MNRAS.440.3184B
Sln2014		Burleigh, M.R., Lawrie, K.A., Kulebi, B., Koester, D. & Holland, B.R.
Sln2014		MNRAS 440, 3184, 2014
Sln2014		(Paper gives no dates or position angles. Coarse date of 2004.5 assigned to all Es
Sln2014		photometry. Theta derived from coordinates in Table 1.)
Sln2015	Es -	Andrews, J.J., Agueros, M.A., Gianninas, A., Kilic, M., Dhital, S. & Anderson, S.	2015ApJ...815...63A
Sln2015		ApJ 815, 63, 2015

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12550-0219	SLN 72		2000	1	14	30.4	16.50	19.80	DA	V	125458.07-021837.8
12550-0219	SLN 72		2015	2	13	30.9	16.50	19.80	DA	V	125458.07-021837.8
12550-0219	SLN 72		2016	4	13	30.9	16.50	19.80	DA	V	125458.07-021837.8

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WDS 12550-0219 SLN 72 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12550-0219 SLN 72 : MEASURES

No records found.

WDS 12550-0219 : VIRTUAL EYEPIECE

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WDS 12550-0219 : ALADIN DSS IMAGE @ 12^h 54^m 58.07^s -02° 18' 37.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12550-0219 SLN 72 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		12550-0219	SLN 72		13	30.9	1
Show		12555-0212	SLW 795		72	13.0	10
Show		12547-0200	CVR1476		8	3.5	20
Show		12556-0255	GIC9018		345	2.2	38
Show		12566-0249	BRT 443		4	3.6	39
Show		12524-0216	SLW 788		2	9.6	40
Show		12540-0137	GRV1082		63	12.6	42
Show		12567-0250	LDS4299		272	76.0	42
Show		12575-0158	BAL 547		310	16.6	44
Show		12510-0220	CVR1473		1	4.3	59
Show		12590-0146	TDS8625		152	0.5	69
Show		12503-0236	UC 2413		313	23.1	72
Show		12553-0336	BRT 442		202	8.1	78
Show		12532-0333	CHR 38		155	0.5	80
Show		13009-0211	CVR1482		177	3.7	90
Show		12596-0119	CVR 675		90	9.5	92
Show		12588-0332	RST4507		34	1.8	94
Show		12487-0216	ZHN 22		219	428.8	95
Show		13006-0322	AGC 5	AB	181	0.6	106
Show		13006-0322	AGC 5	AC	127	41.2	106
Show		13009-0318	GMC 2		152	20.3	107
Show		13020-0205	OSO 49		63	18.1	107
Show		13022-0209	SLW 813		284	17.5	110
Show		12511-0352	GWP1866		328	22.8	110
Show		12597-0349	CHR 39	Aa,Ab	317	0.1	115
Show		12597-0349	STF1704	AB	54	20.6	115
Show		13025-0239	SLW 815		121	111.3	115
Show		12481-0126	SLW 775		235	12.7	117
Show		13027-0159	HJ 1225		111	15.0	119
Show		13000-0407	UC 2446		204	32.5	133
Show		13039-0138	KPP 942		250	7.8	140
Show		12455-0218	BAL 546		81	9.1	141
Show		13043-0153	RST4971		330	0.7	142
Show		13043-0152	UC 2467		246	53.3	143
Show		13043-0239	CVR 678		258	23.5	143
Show		12509-0428	LDS6270		269	7.9	144
Show		13039-0322	TDS 687	Aa,Ab	33	0.8	149
Show		13039-0322	UC 2464	AB	83	26.3	149
Show		12518+0005	TOK 671	AB	7	22.8	152
Show		12584+0005	CVR 673		239	8.8	153
Show		12518-0007	SLW 783		169	37.8	154
Show		12563-0452	STF1690		150	5.8	155
Show		13041-0336	GWP1899		63	47.9	157
Show		13039-0340	BU 929		188	0.4	157
Show		13058-0155	SLW 822		305	151.0	164
Show		13050-0233	GRV1084		146	9.8	164
Show		12440-0230	CVR1462		106	3.3	166
Show		12445-0119	SKF 38	AB	337	9.5	169
Show		12445-0119	ZUC 11	BC	252	3.2	169
Show		12599-0014	RST5373		110	2.9	170
Show		12536+0033	KPP2331		78	19.9	173

WDS 12550-0219 : COMPONENTS

	A
B	pa=13.0° sep=30.87"

12550-0219 A

Componente originario normalizzato	AB		Coord arcsec 2000	125458.07-021837.8		Mag	16.5		Spectral class	DA (white dwarf)
PmRA	-13.00		PmDE	-56.0

12550-0219 B

Componente originario normalizzato	AB		Coord arcsec 2000	125458.53-021807.7		Mag	19.8		PmRA	-7.00
PmDE	-57.0		Calc delta mag	3.3		Calc coord	yes