20446+4041 HJ 1574

20^h 44^m 36.82^s +40° 40' 36.6" P.A. 278.00 sep 7.4 mag 11.73,12.58

Coord 2000	20446+4041	Discov num	HJ 1574	Comp		Coord arcsec 2000	20 44 36.82 +40 40 36.6
Date first	1828	Date last	2014	Obs	7
Pa first	278	Pa last	278.1	P.A. Now (θ)	278.1°
Sep first	3.0	Sep last	7.421	Sep. Now (ρ)	7.421"
Mag pri	11.73	Mag sec	12.58	delta mag (ΔM)	0.85	Spectral class
Pri motion ra	-001	Sec motion ra	-003
Pri motion dec	-001	Sec motion dec	+002
Notes	N (See Notes)

rPM=1

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3170-01155-1

Gaia DR2

2066061753946498816

WDS 20446+4041 HJ 1574 : NOTES

discov_num	notes	refcode
HJ 1574	HJ 1573 and HJ 1574 are obvious on ALADIN, forming roughly 10" and 8"
	pairs are roughly Herschel's position angles. Burnham's observation of	Bu_1906
	HJ 1574 appears discrepant.

REFERENCES

refcode	metd	author	reference
Bu_1906	Ma j	Burnham, S.W.	1906QB821.B972.....
Bu_1906	+M	Burnham Double Star Cat., 1906

DISCOVERER

idgroup	discov	author
1	HJ	Herschel, J.F.W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20446+4041	HJ 1574		1828	1	278	3.0	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		1998	2	278	7.4	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2002	3	278	7.4	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2013	4	274	9.9	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2014	7	278	7.4	11.73	12.58		N	204436.82+404036.6

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

WDS 20446+4041 HJ 1574 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20446+4041 HJ 1574 : MEASURES

No records found.

WDS 20446+4041 : VIRTUAL EYEPIECE

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

WDS 20446+4041 : ALADIN DSS IMAGE @ 20^h 44^m 36.82^s +40° 40' 36.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20446+4041 HJ 1574 : 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		20446+4041	HJ 1574		278	7.4	1
Show		20446+4040	HJ 1573		274	9.8	1
Show		20440+4030	SLN 85		203	9.1	13
Show		20444+4027	TDT2510		157	0.9	14
Show		20454+4023	OSO 133	AB	114	12.0	20
Show		20454+4023	OSO 133	AC	236	11.7	20
Show		20454+4023	OSO 133	AD	67	21.8	20
Show		20454+4023	OSO 133	AE	8	22.4	20
Show		20429+4036	MLB 24		175	5.9	21
Show		20436+4024	DAM1256		106	9.6	21
Show		20432+4026	COU2421		110	0.3	22
Show		20444+4103	COU2423	AB	180	0.3	24
Show		20444+4103	GRV 375	AC	197	31.4	24
Show		20422+4041	MLB 23		41	7.6	28
Show		20456+4014	TDT2519		347	1.3	29
Show		20466+4020	ES 1982		301	3.9	30
Show		20454+4011	TDT2518		203	0.7	31
Show		20453+4010	COU2293		201	1.1	32
Show		20476+4038	CNT 9		292	9.0	35
Show		20426+4013	TDT2488		138	0.5	36
Show		20413+4051	COU2419		69	0.8	39
Show		20420+4015	A 1433		24	0.8	40
Show		20434+4001	BRT2272		285	5.1	43
Show		20485+4041	ES 1682		152	3.1	44
Show		20428+4123	RAO 619		141	0.6	48
Show		20447+4131	MLB 25		207	5.7	50
Show		20488+4024	ALI1192		2	16.5	51
Show		20421+4125	COU2420		90	0.5	53
Show		20434+4131	HJ 1571		59	7.3	53
Show		20419+3956	SEI1221		254	2.0	55
Show		20428+4132	ES 1571		39	7.4	55
Show		20495+4035	COU2426		328	1.2	56
Show		20405+4010	TOB 196	BC	32	23.4	56
Show		20405+4010	SEI1214	AB	78	20.3	57
Show		20419+3953	SEI1222		77	25.4	57
Show		20484+4002	J 1237	BC	355	5.6	58
Show		20396+4035	STT 410	AB	3	0.9	58
Show		20396+4035	STT 410	AB,C	70	68.6	58
Show		20396+4035	STT 410	AB,D	327	106.6	58
Show		20484+4002	SEI1255	AB	338	24.4	58
Show		20427+3947	TDT2491		275	1.4	59
Show		20481+3958	CVR 231		359	9.7	59
Show		20480+4126	ES 1681		146	2.1	59
Show		20434+3943	TDT2497		317	0.5	60
Show		20486+4000	TOB 198		96	21.0	61
Show		20416+3950	COU2290		43	0.5	62
Show		20478+3944	GRV 381		340	35.8	67
Show		20392+4017	ES 1980		60	8.3	69
Show		20402+3953	MLB 885		72	1.7	69
Show		20390+4109	TDT2451		105	0.7	70
Show		20395+4002	BRT2269		199	5.0	71

WDS 20446+4041 : COMPONENTS

	A
B	pa=280.6° sep=5.67"

20446+4041 A

Componente originario normalizzato	AB		Coord arcsec 2000	204436.82+404036.6		Mag	11.73		PmRA	-1.00
PmDE	-1.0

20446+4041 B

Componente originario normalizzato	AB		Coord arcsec 2000	204436.33+404037.6		Mag	12.58		PmRA	-3.00
PmDE	2.0		Tycho2	3170-01155-1		Calc delta mag	0.85		Calc coord	yes

Tycho2

Tycho2	3170-01155-1	Pflag		RAmdeg	311.15338820	DEmdeg	40.67683626
PmRA	0.7	PmDE	-0.6	E RAmdeg	96	E DEmdeg	87
E pmRA	2.8	E pmDE	2.5	EpRAm	1977.20	EpDEm	1977.74
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	13.144	E BTmag	0.278	VTmag	12.321
E VTmag	0.187	Prox	999	TYC		HIP
CCDM		RAdeg	311.15338639	DEdeg	40.67683750	EpRA 1990	1.59
EpDE 1990	1.70	E RAdeg	103.7	E DEdeg	93.8	Posflg
Corr	0.0