20556+0649 TDT 2635

20^h 55^m 33.18^s +06° 48' 45.4" P.A. 259.00 sep 0.8 mag 11.39,11.51

Coord 2000	20556+0649	Discov num	TDT2635	Comp		Coord arcsec 2000	20 55 33.18 +06 48 45.4
Date first	1991	Date last	2016	Obs	3
Pa first	250	Pa last	259	P.A. Now (θ)	259°
Sep first	0.8	Sep last	0.785	Sep. Now (ρ)	0.785"
Mag pri	11.39	Mag sec	11.51	delta mag (ΔM)	0.12	Spectral class
Pri motion ra	-019	Sec motion ra	-019
Pri motion dec	-021	Sec motion dec	-021
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Tycho2

0525-02100-1

Gaia DR2

1737333207743403904

WDS 20556+0649 TDT 2635 : NOTES

No records found.

REFERENCES

No records found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20556+0649	TDT2635		1991	1	250	0.8	11.39	11.51			205533.18+064845.4
20556+0649	TDT2635		2016	2	259	0.8	11.39	11.51			205533.18+064845.4

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WDS 20556+0649 TDT 2635 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20556+0649 TDT 2635 : MEASURES

No records found.

WDS 20556+0649 : VIRTUAL EYEPIECE

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WDS 20556+0649 : ALADIN DSS IMAGE @ 20^h 55^m 33.18^s +06° 48' 45.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20556+0649 TDT 2635 : 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		20556+0649	TDT2635		259	0.8
Show		20554+0653	BRT2188		46	4.2	5
Show		20559+0646	NSN 739		52	8.8	6
Show		20546+0641	SLN 86		160	4.8	17
Show		20566+0659	TDT2649		8	0.6	19
Show		20543+0650	TDT2621		4	1.7	19
Show		20560+0708	GWP3020		179	6.7	20
Show		20539+0620	TDS1107		110	1.6	38
Show		20533+0627	TDT2607		281	0.6	40
Show		20562+0728	LDS4861		90	2.0	41
Show		20552+0729	GWP3017		96	132.1	41
Show		20583+0654	KPP 481		233	3.8	41
Show		20540+0614	TDT2616		100	0.4	43
Show		20539+0730	TDT2613		69	0.6	49
Show		20527+0720	STF2733		145	40.2	53
Show		20586+0723	J 1715		125	5.2	58
Show		20533+0551	UC 4318		168	33.0	67
Show		20588+0600	UC 4347		31	40.4	69
Show		20511+0623	STF2730		333	3.3	72
Show		20516+0734	A 612		7	2.0	75
Show		20561+0535	TDT2642		77	0.6	75
Show		21001+0731	KUI 102		191	0.2	80
Show		20584+0757	ARY 68		339	112.4	81
Show		21010+0704	HEI 821		90	2.9	83
Show		20516+0747	SKF1868		313	57.7	83
Show		20580+0804	ARY 67		1	152.9	84
Show		20519+0544	A 613		324	0.7	85
Show		20529+0529	GCB 60		152	6.5	92
Show		20527+0527	J 572		138	3.4	94
Show		21006+0554	GRV 403		116	33.5	94
Show		20550+0823	UC 4323		103	35.6	95
Show		20572+0823	UC 4341		344	63.1	98
Show		21021+0703	WSP 90	AB	185	1.0	99
Show		21021+0703	WSP 90	AC	1	9.5	99
Show		21021+0703	WSP 90	AD	83	16.5	99
Show		20526+0517	GCB 75		101	3.3	101
Show		20487+0706	J 3223		307	2.7	101
Show		21022+0711	STF2742		213	3.0	102
Show		21024+0625	TDT2708		27	0.8	105
Show		20514+0524	TOB 313		130	20.8	106
Show		20559+0835	J 157		171	3.8	106
Show		20554+0836	J 1318		139	0.9	107
Show		20560+0837	J 1346		327	2.4	108
Show		20511+0526	GCB 59		238	10.1	108
Show		20537+0833	GWP3013		15	7.0	109
Show		20501+0802	GWP3003		228	21.2	110
Show		21014+0542	ELP 47		25	6.3	110
Show		20583+0831	ARY 87		215	62.2	110
Show		20560+0840	TDT2638		97	2.2	112
Show		21030+0650	GRV 406		287	10.5	113
Show		20500+0533	STTA210	BC	222	12.4	113

WDS 20556+0649 : COMPONENTS

	A
B	pa=258.9° sep=0.78"

20556+0649 A

Componente originario normalizzato	AB		Coord arcsec 2000	205533.18+064845.4		Mag	11.39		PmRA	-19.00
PmDE	-21.0		Tycho2	0525-02100-1

Tycho2

Tycho2	0525-02100-1	Pflag		RAmdeg	313.88815284	DEmdeg	6.81256070
PmRA	-19.2	PmDE	-21.1	E RAmdeg	26	E DEmdeg	37
E pmRA	2.6	E pmDE	2.5	EpRAm	1990.53	EpDEm	1988.45
Num	3	Q RAmdeg	0.3	Q DEmdeg	1.1	Q pmRA	0.3
Q pmDE	1.0	BTmag	11.676	E BTmag	0.057	VTmag	10.830
E VTmag	0.046	Prox	999	TYC	T	HIP
CCDM		RAdeg	313.88819722	DEdeg	6.81261083	EpRA 1990	1.78
EpDE 1990	1.46	E RAdeg	25.7	E DEdeg	37.5	Posflg
Corr	0.0

20556+0649 B

Componente originario normalizzato	AB		Coord arcsec 2000	205533.13+064845.3		Mag	11.51		PmRA	-19.00
PmDE	-21.0		Calc delta mag	0.12		Calc coord	yes