20454+3651 SEI 1238

20^h 45^m 25.39^s +36° 50' 21.3" P.A. 123.00 sep 8.1 mag 10.40,10.60

Coord 2000	20454+3651	Discov num	SEI1238	Comp		Coord arcsec 2000	20 45 25.39 +36 50 21.3
Date first	1896	Date last	2016	Obs	12
Pa first	121	Pa last	123	P.A. Now (θ)	123°
Sep first	9.2	Sep last	8.13	Sep. Now (ρ)	8.13"
Mag pri	10.40	Mag sec	10.60	delta mag (ΔM)	0.2	Spectral class
Pri motion ra	+004	Sec motion ra	-003
Pri motion dec	-006	Sec motion dec	+001
Notes

rPM=1.373

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1870985958580413056

WDS 20454+3651 SEI 1238 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20454+3651	SEI1238		1998	5	123	8.3	10.40	10.60		D	204525.39+365021.3
20454+3651	SEI1238		2002	6	123	8.2	10.40	10.60		D	204525.39+365021.3
20454+3651	SEI1238		2010	7	124	7.6	10.40	10.60			204525.39+365021.3
20454+3651	SEI1238		2016	7	124	8.1	10.40	10.60			204525.39+365021.3

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WDS 20454+3651 SEI 1238 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20454+3651 SEI 1238 : MEASURES

No records found.

WDS 20454+3651 : VIRTUAL EYEPIECE

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WDS 20454+3651 : ALADIN DSS IMAGE @ 20^h 45^m 25.39^s +36° 50' 21.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20454+3651 SEI 1238 : 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		20454+3651	SEI1238		123	8.1
Show		20457+3647	AG 265		207	6.8	6
Show		20450+3651	ES 2513		275	6.4	6
Show		20461+3653	ES 2514		100	2.9	8
Show		20458+3658	CRB 6		154	10.9	9
Show		20463+3646	COU2220	Aa,Ab	299	0.7	11
Show		20463+3646	ES 2515	AB	175	6.8	11
Show		20455+3706	FIO 1		319	4.9	16
Show		20468+3648	STJ 73		231	0.9	17
Show		20447+3714	SEI1233		73	5.3	25
Show		20462+3628	TDT2528		4	1.9	25
Show		20458+3715	TDT2522		89	0.5	25
Show		20431+3645	SEI1227		168	15.0	30
Show		20474+3629	MCA 63	Aa,Ab	46	0.1	32
Show		20474+3629	STT 413	AB	1	0.9	32
Show		20474+3629	S 765	AC	106	82.8	32
Show		20474+3629	FYM 126	AF	119	52.0	32
Show		20474+3629	FYM 126	CD	112	9.4	34
Show		20474+3629	FYM 126	CE	207	40.1	34
Show		20444+3617	GII 53		358	0.3	36
Show		20423+3637	SEI1224		161	25.2	41
Show		20437+3727	COU2291		228	1.0	43
Show		20468+3730	ALI 674		328	13.0	44
Show		20472+3730	J 1210		247	3.9	45
Show		20491+3640	SEI1260		42	7.5	45
Show		20419+3711	SEI1220		161	13.0	47
Show		20435+3609	ES 2195	BC	91	1.8	48
Show		20416+3637	SEI1218		226	12.8	48
Show		20435+3609	ES 2195	AB	4	20.7	48
Show		20447+3739	SEI1232		240	28.9	49
Show		20415+3635	SEI1216		117	11.8	50
Show		20460+3601	SEI1242		214	23.6	50
Show		20414+3644	SEI1215		135	28.8	52
Show		20450+3600	ALI 204		307	11.5	52
Show		20422+3726	SEI1223		142	10.3	53
Show		20410+3658	TDT2469		353	2.9	54
Show		20490+3619	COU1811		255	0.8	54
Show		20417+3622	SEI1217		245	15.1	54
Show		20485+3608	SEI1253		83	24.1	56
Show		20500+3640	TOB 199		109	18.8	57
Show		20460+3554	TDT2525		70	0.6	57
Show		20464+3747	SEI1244		149	22.5	58
Show		20502+3642	SEI1270		211	23.1	59
Show		20503+3645	TDT2568		174	2.4	59
Show		20501+3714	SEI1268	AB	123	27.3	61
Show		20501+3714	CLL 15	AC	20	48.5	61
Show		20465+3550	ES 2196		70	5.6	63
Show		20423+3601	TDT2481		43	0.7	63
Show		20505+3635	SEI1271	AB	27	14.9	63
Show		20505+3635	SEI1272	AC	185	20.4	63
Show		20430+3555	HJ 1568		44	11.2	63

WDS 20454+3651 : COMPONENTS

	A
B	pa=129.1° sep=7.03"

20454+3651 A

Componente originario normalizzato	AB		Coord arcsec 2000	204525.39+365021.3		Mag	10.4		PmRA	4.00
PmDE	-6.0

20454+3651 B

Componente originario normalizzato	AB		Coord arcsec 2000	204525.84+365016.9		Mag	10.6		PmRA	-3.00
PmDE	1.0		Calc delta mag	0.2		Calc coord	yes