20310+2054 GCB 55

20^h 30^m 54.66^s +20° 55' 11.3" P.A. 149.00 sep 6.7 mag 11.80,11.90

Coord 2000	20310+2054	Discov num	GCB 55	Comp		Coord arcsec 2000	20 30 54.66 +20 55 11.3
Date first	1930	Date last	2015	Obs	16
Pa first	145	Pa last	148.6	P.A. Now (θ)	148.6°
Sep first	5.2	Sep last	6.74	Sep. Now (ρ)	6.74"
Mag pri	11.80	Mag sec	11.90	delta mag (ΔM)	0.1	Spectral class
Pri motion ra	-001	Sec motion ra	+012
Pri motion dec	-004	Sec motion dec	-016
Notes	N (See Notes)

rPM=0.885

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vulpecula

Gaia DR2

1816844940869565440

WDS 20310+2054 GCB 55 : NOTES

discov_num	notes	refcode
GCB 55	J 3090 is identical	Hei1983a
	Also appears to be the same as GCB 56 with a typo in that separation.	Dam2013

REFERENCES

refcode	metd	author	reference
Dam2013	Es j	Damm, F.	...................
Dam2013		private communication, 2013
Hei1983a	M+ j	Heintz, W.D.	1983ApJS...51..249H
Hei1983a	+Po	ApJS 51, 249, 1983

DISCOVERER

idgroup	discov	author
1	GCB	Giacobini, M.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20310+2054	GCB 55		2004	4	148	6.7	11.80	11.90		N	203054.66+205511.3
20310+2054	GCB 55		2012	8	149	6.8	11.80	11.90		N	203054.66+205511.3
20310+2054	GCB 55		2013	10	150	6.7	11.80	11.90		N	203054.66+205511.3
20310+2054	GCB 55		2015	11	149	6.7	11.80	11.90		N	203054.66+205511.3

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

WDS 20310+2054 GCB 55 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20310+2054 GCB 55 : MEASURES

No records found.

WDS 20310+2054 : VIRTUAL EYEPIECE

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WDS 20310+2054 : ALADIN DSS IMAGE @ 20^h 30^m 54.66^s +20° 55' 11.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20310+2054 GCB 55 : 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		20310+2054	GCB 55		149	6.7
Show		20314+2054	J 844		117	4.0	2
Show		20306+2058	DAM 272		333	7.2	5
Show		20314+2101	DAM 215		136	4.5	10
Show		20314+2049	J 3091	A,BC	123	6.1	11
Show		20314+2049	DAM1459	BC	7	1.7	11
Show		20317+2055	GCB 58		109	4.3	14
Show		20307+2109	COU 222		4	1.2	15
Show		20320+2056	DAM 216		76	11.8	16
Show		20310+2036	BU 363	AB	88	5.7	19
Show		20310+2036	BU 363	AC	206	55.9	19
Show		20284+2110	GRV 342		97	37.2	38
Show		20336+2106	ARN 83		75	58.6	40
Show		20336+2111	HJ 2979	AB	63	10.4	42
Show		20336+2111	HJ 2979	AC	354	18.9	42
Show		20310+2007	HJ 2974		297	14.4	48
Show		20338+2125	TDS1083		354	2.5	51
Show		20272+2049	BRT2476		77	5.6	52
Show		20306+2158	BRT2478		297	3.6	63
Show		20365+2044	J 3096	BC	10	8.5	80
Show		20365+2044	J 3096	AB	2	26.6	81
Show		20306+1932	UC 251		38	39.9	84
Show		20318+2219	ROE 12		30	10.9	84
Show		20327+1932	OSO 126	AB	198	6.9	88
Show		20327+1932	OSO 126	AC	275	10.3	88
Show		20327+1932	OSO 126	AD	170	23.2	88
Show		20327+1932	OSO 126	AE	338	25.4	88
Show		20327+1932	OSO 126	AF	161	21.8	88
Show		20302+1925	FOX 254	CD	301	35.0	91
Show		20302+1925	BU 987	AB	128	2.5	91
Show		20302+1925	S 752	AC	288	106.3	91
Show		20302+1925	FOX 254	AE	70	21.2	91
Show		20312+2227	J 564		308	2.5	92
Show		20278+1935	TDT2296		359	1.6	92
Show		20324+2226	ROE 13		41	6.4	94
Show		20267+1940	GWP2949		267	111.9	96
Show		20381+2050	COU 328		155	1.0	101
Show		20339+2227	GRV 353		82	19.7	102
Show		20280+2229	GRV 341		159	76.3	102
Show		20383+2106	TDT2441		89	0.6	105
Show		20232+2122	LDS1041		134	6.0	108
Show		20339+1915	J 3094	AB	22	7.5	109
Show		20339+1915	FYM 313	AC	340	15.4	109
Show		20231+2052	A 288		296	0.2	109
Show		20373+2157	MCT 11		121	51.8	109
Show		20364+2213	J 1178		328	3.9	110
Show		20355+2225	STJ 39		246	1.2	110
Show		20264+2227	BRT2526		109	3.5	111
Show		20345+2235	BRT2479		350	5.1	112
Show		20329+1906	COU2644		286	0.8	113
Show		20241+2156	HDS2915		343	1.3	114

WDS 20310+2054 : COMPONENTS

	A
B	pa=150.3° sep=6.62"

20310+2054 A

Componente originario normalizzato	AB		Coord arcsec 2000	203054.66+205511.3		Mag	11.8		PmRA	-1.00
PmDE	-4.0

20310+2054 B

Componente originario normalizzato	AB		Coord arcsec 2000	203054.89+205505.5		Mag	11.9		PmRA	12.00
PmDE	-16.0		Calc delta mag	0.1		Calc coord	yes