20314+2054 J 844

20^h 30^m 50.69^s +20° 53' 41.6" P.A. 117.00 sep 4.0 mag 11.90,12.80

Coord 2000	20314+2054	Discov num	J 844	Comp		Coord arcsec 2000	20 30 50.69 +20 53 41.6
Date first	1930	Date last	2016	Obs	11
Pa first	121	Pa last	117.4	P.A. Now (θ)	117.4°
Sep first	2.3	Sep last	4.042	Sep. Now (ρ)	4.042"
Mag pri	11.90	Mag sec	12.80	delta mag (ΔM)	0.9	Spectral class
Pri motion ra	-012	Sec motion ra	+000
Pri motion dec	+000	Sec motion dec	-001
Notes	N (See Notes)

rPM=1.003

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1816844524255912832

WDS 20314+2054 J 844 : NOTES

discov_num	notes	refcode
J 844	Heintz says GCB 54 and J 844 are identical, with erroneous position	Hei1983a
	and angle by Jonckheere. Designation J 844 retained, based on earlier
	discovery.
	Same as GCB 57.	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	J	Jonckheere, R.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20314+2054	J 844		1980	4	120	3.5	12.20	12.80		N I	203134.23+205120.4
20314+2054	J 844		2000	6	118	4.0	12.20	12.80		N	203050.69+205341.6
20314+2054	J 844		2001	7	116	4.0	12.20	12.80		N	203050.69+205341.6
20314+2054	J 844		2011	7	118	4.1	12.20	12.80		N	203050.69+205341.6
20314+2054	J 844		2012	9	117	4.0	12.20	12.80		N	203050.69+205341.6
20314+2054	J 844		2013	10	117	4.0	11.90	12.80		N	203050.69+205341.6
20314+2054	J 844		2015	12	117	4.0	11.90	12.80		N	203050.69+205341.6
20314+2054	J 844		2016	11	117	4.0	11.90	12.80		N	203050.69+205341.6

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

WDS 20314+2054 J 844 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20314+2054 J 844 : MEASURES

No records found.

WDS 20314+2054 : VIRTUAL EYEPIECE

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

WDS 20314+2054 : ALADIN DSS IMAGE @ 20^h 30^m 50.69^s +20° 53' 41.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20314+2054 J 844 : 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		20314+2054	J 844		117	4.0	1
Show		20310+2054	GCB 55		149	6.7	2
Show		20306+2058	DAM 272		333	7.2	6
Show		20314+2049	J 3091	A,BC	123	6.1	11
Show		20314+2049	DAM1459	BC	7	1.7	11
Show		20314+2101	DAM 215		136	4.5	12
Show		20317+2055	GCB 58		109	4.3	15
Show		20307+2109	COU 222		4	1.2	16
Show		20320+2056	DAM 216		76	11.8	17
Show		20310+2036	BU 363	AB	88	5.7	18
Show		20310+2036	BU 363	AC	206	55.9	18
Show		20284+2110	GRV 342		97	37.2	38
Show		20336+2106	ARN 83		75	58.6	41
Show		20336+2111	HJ 2979	AB	63	10.4	43
Show		20336+2111	HJ 2979	AC	354	18.9	43
Show		20310+2007	HJ 2974		297	14.4	47
Show		20272+2049	BRT2476		77	5.6	50
Show		20338+2125	TDS1083		354	2.5	53
Show		20306+2158	BRT2478		297	3.6	65
Show		20365+2044	J 3096	BC	10	8.5	81
Show		20365+2044	J 3096	AB	2	26.6	81
Show		20306+1932	UC 251		38	39.9	83
Show		20318+2219	ROE 12		30	10.9	86
Show		20327+1932	OSO 126	AB	198	6.9	87
Show		20327+1932	OSO 126	AC	275	10.3	87
Show		20327+1932	OSO 126	AD	170	23.2	87
Show		20327+1932	OSO 126	AE	338	25.4	87
Show		20327+1932	OSO 126	AF	161	21.8	87
Show		20302+1925	FOX 254	CD	301	35.0	89
Show		20302+1925	BU 987	AB	128	2.5	89
Show		20302+1925	S 752	AC	288	106.3	89
Show		20302+1925	FOX 254	AE	70	21.2	89
Show		20278+1935	TDT2296		359	1.6	90
Show		20312+2227	J 564		308	2.5	93
Show		20267+1940	GWP2949		267	111.9	94
Show		20324+2226	ROE 13		41	6.4	95
Show		20381+2050	COU 328		155	1.0	102
Show		20280+2229	GRV 341		159	76.3	103
Show		20339+2227	GRV 353		82	19.7	104
Show		20383+2106	TDT2441		89	0.6	106
Show		20232+2122	LDS1041		134	6.0	107
Show		20339+1915	J 3094	AB	22	7.5	108
Show		20339+1915	FYM 313	AC	340	15.4	108
Show		20231+2052	A 288		296	0.2	108
Show		20373+2157	MCT 11		121	51.8	111
Show		20364+2213	J 1178		328	3.9	111
Show		20329+1906	COU2644		286	0.8	112
Show		20355+2225	STJ 39		246	1.2	112
Show		20264+2227	BRT2526		109	3.5	112
Show		20345+2235	BRT2479		350	5.1	114
Show		20241+2156	HDS2915		343	1.3	114

WDS 20314+2054 : COMPONENTS

	A
B	pa=119.0° sep=3.83"

20314+2054 A

Componente originario normalizzato	AB		Coord arcsec 2000	203050.69+205341.6		Mag	11.9		PmRA	-12.00
PmDE	0.0

20314+2054 B

Componente originario normalizzato	AB		Coord arcsec 2000	203050.93+205339.7		Mag	12.8		PmRA	0.00
PmDE	-1.0		Calc delta mag	0.9		Calc coord	yes