16581+1031 SKF 54

16^h 58^m 07.94^s +10° 30' 44.7" P.A. 197.00 sep 2.5 mag 17.00,18.20 Sp sdOB

Coord 2000	16581+1031	Discov num	SKF 54	Comp		Coord arcsec 2000	16 58 07.94 +10 30 44.7
Date first	1994	Date last	2015	Obs	2
Pa first	200	Pa last	196.6	P.A. Now (θ)	196.6°
Sep first	2.6	Sep last	2.478	Sep. Now (ρ)	2.478"
Mag pri	17.00	Mag sec	18.20	delta mag (ΔM)	1.2	Spectral class	sdOB
Pri motion ra	-003	Sec motion ra
Pri motion dec	-028	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Ophiuchus

Gaia DR2

4444481090466129664

WDS 16581+1031 SKF 54 : NOTES

No records found.

DISCOVERER

discov	author
SKF	Skiff, B.A.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
16581+1031	SKF 54		1994	1	200	2.6	16.50	18.00	sdOB			165807.94+103044.7
16581+1031	SKF 54		2000	1	200	2.5	16.50	18.00	sdOB			165807.94+103044.7
16581+1031	SKF 54		2015	2	197	2.5	17.00	18.20	sdOB			165807.94+103044.7

If you need more information about this double, apply for a data request form to the WDS.

WDS 16581+1031 SKF 54 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 16581+1031 SKF 54 : MEASURES

No records found.

WDS 16581+1031 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 16581+1031 : ALADIN DSS IMAGE @ 16^h 58^m 07.94^s +10° 30' 44.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 16581+1031 SKF 54 : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		16581+1031	SKF 54		197	2.5	0
Show		16565+1032	TDT 155		268	0.5	25
Show		16566+1014	HU 160		209	0.3	29
Show		16595+0942	BU 1298	AB	132	0.4	53
Show		16595+0942	STTA150	AB,C	165	76.4	53
Show		16595+0942	STF2111	CD	164	25.8	54
Show		17004+1113	GWP2685		210	5.6	55
Show		16588+1127	UC 3267		104	8.7	58
Show		16563+1125	KPP3311		180	2.6	62
Show		16540+1010	DCH 120		76	0.4	65
Show		16556+0934	LDS4702		91	292.6	69
Show		17014+0917	BRT3222		183	4.1	88
Show		16581+0902	HDS2401		18	0.3	89
Show		16529+0941	GWP2677		86	17.4	92
Show		17024+1146	CVR 194		196	8.7	99
Show		17029+0912	LDS4718	AB	302	12.1	105
Show		17029+0912	LDS4718	AC	315	42.6	105
Show		17055+1033	BU 357		307	1.5	110
Show		16512+1122	BPM 671		89	33.8	115
Show		17034+0902	YSC 9		78	0.2	119
Show		16511+0924	STF2106	AB	171	0.8	124
Show		16511+0924	LBU 16	AC	159	69.5	124
Show		16583+1234	GRV 943		273	17.4	124
Show		17020+0827	STF2114		198	1.4	137
Show		16488+1039	CRC 73		321	0.1	139
Show		16541+0826	HEI 857		139	0.6	139
Show		16490+1120	GWP2671		170	18.9	143
Show		16507+0857	TDT 112		119	0.9	145
Show		16485+1119	HEI 546		186	2.7	151
Show		17086+0951	HU 167		91	0.8	160
Show		17070+1213	AG 353		248	9.6	167
Show		16578+1317	HDS2399		255	0.3	167
Show		16598+1319	HU 1279		156	1.8	170
Show		17096+1013	CVR 857		4	21.6	171
Show		17054+1244	H 5 133		307	60.9	171
Show		16471+0933	TDT 84		345	2.9	173
Show		17088+0911	RAO 510		-1	0.2	177
Show		16583+0733	RAO 603		136	0.5	178
Show		16507+1259	BRT1284		122	3.7	184
Show		17092+0907	DAM 910		73	4.2	184
Show		16472+1210	KPP 379		181	3.5	189
Show		17017+0729	HEI 858		256	1.2	189
Show		16469+0847	BRT2166		7	3.8	197
Show		16449+0957	STF2090	CD	38	21.6	199
Show		16449+0957	STF2090	AB	158	17.6	199
Show		16449+0957	STF2090	AC	25	69.1	199
Show		16449+0957	STF2090	AD	28	90.2	199
Show		16575+1352	LDS4709		198	141.5	201
Show		16446+1009	HEI 545		236	0.9	201
Show		17116+1008	DAM 974		77	5.7	201
Show		17044+1330	BPM 674		144	115.5	201

WDS 16581+1031 : COMPONENTS

	A
B	pa=196.6° sep=2.48"

16581+1031 A

Coord arcsec 2000	165807.94+103044.7		Mag	17		Spectral class	sdOB		PmRA	-3.00
PmDE	-28.0

16581+1031 B

Coord arcsec 2000

165807.89+103042.3

Mag

18.2

Delta magnitude

1.2

Coordinate calculated

yes