20301+4007 ES 245

20^h 30^m 08.22^s +40° 06' 55.9" P.A. 158.00 sep 4.1 mag 10.87,11.22

Coord 2000	20301+4007	Discov num	ES 245	Comp		Coord arcsec 2000	20 30 08.22 +40 06 55.9
Date first	1892	Date last	2016	Obs	12
Pa first	161	Pa last	157.9	P.A. Now (θ)	157.9°
Sep first	3.7	Sep last	4.11	Sep. Now (ρ)	4.11"
Mag pri	10.87	Mag sec	11.22	delta mag (ΔM)	0.35	Spectral class
Pri motion ra	+001	Sec motion ra	+000
Pri motion dec	+001	Sec motion dec	+001
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.707

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3157-01213-1

Gaia DR2

2067334717832406528

ADS

13927

WDS 20301+4007 ES 245 : NOTES

discov_num	notes	refcode
ES 245	SEI1140.	Nsn2017d

REFERENCES

refcode	metd	author	reference
Nsn2017d	not -	Nanson, J.	...................
Nsn2017d		private communication, 2017

DISCOVERER

idgroup	discov	author
1	ES	Espin, T.E.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20301+4007	ES 245		1998	7	159	3.4	10.87	11.22		D	203008.22+400655.9
20301+4007	ES 245		2002	8	158	4.1	10.87	11.22		D	203008.22+400655.9
20301+4007	ES 245		2016	11	158	4.1	10.87	11.22		N	203008.22+400655.9

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WDS 20301+4007 ES 245 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20301+4007 ES 245 : MEASURES

No records found.

WDS 20301+4007 : VIRTUAL EYEPIECE

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WDS 20301+4007 : ALADIN DSS IMAGE @ 20^h 30^m 08.22^s +40° 06' 55.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20301+4007 ES 245 : 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		20301+4007	ES 245		158	4.1
Show		20306+4015	STJ 84		34	1.2	10
Show		20294+4011	ALV 6		259	0.6	10
Show		20299+4022	HJ 1525	AB	234	9.2	16
Show		20299+4022	HJ 1525	AC	39	17.1	16
Show		20296+4021	STN 50		170	6.3	18
Show		20283+4005	COU2538		31	1.0	22
Show		20280+3958	TDT2299		8	0.5	26
Show		20298+3939	LSC 90		335	0.1	29
Show		20327+4008	TDT2351		131	0.6	30
Show		20328+4000	SEI1161		280	7.4	31
Show		20328+3954	ES 1680	BC	27	2.8	33
Show		20328+3954	ES 1680	AB	4	50.7	33
Show		20311+3935	LDS6414		346	8.0	34
Show		20272+3949	ES 1976		79	3.8	38
Show		20272+3948	SEI1127		116	26.3	38
Show		20283+4038	TDT2306		156	1.1	39
Show		20325+4035	CAN 22	AB	153	3.3	39
Show		20325+4035	CAN 22	AC	178	4.5	39
Show		20325+4035	CAN 22	AD	84	6.3	39
Show		20325+4035	CAN 22	AE	65	7.4	39
Show		20325+4035	CAN 22	AF	261	9.2	39
Show		20325+4035	CAN 22	AG	31	11.5	39
Show		20278+4036	TDT2294		310	2.2	40
Show		20332+4028	HJ 609		320	26.7	41
Show		20338+4012	TDT2375		112	2.2	43
Show		20310+4050	CAN 26	AB	270	2.6	45
Show		20310+4050	CAN 26	AC	335	8.3	45
Show		20310+4050	CAN 26	AD	93	8.4	45
Show		20326+4041	CAN 18	AB	63	7.5	45
Show		20326+4041	CAN 18	AC	130	8.1	45
Show		20326+4041	CAN 18	AD	117	8.8	45
Show		20326+4041	CAN 18	AE	179	9.1	45
Show		20326+4041	CAN 18	AF	132	9.4	45
Show		20326+4041	CAN 18	AG	305	10.8	45
Show		20328+4040	SKF1866		286	2.8	45
Show		20277+3932	TDT2292		167	0.5	45
Show		20290+3924	ALI1144		165	11.6	45
Show		20321+4048	CAN 77		81	12.5	48
Show		20286+3923	TDT2315		141	1.5	48
Show		20264+4029	MLB1087		98	9.5	49
Show		20331+3932	SEI1164		214	18.0	49
Show		20292+3919	SEI1134		32	3.8	49
Show		20339+4031	OPI9006		300	17.0	50
Show		20259+4019	ALI1142		56	12.1	50
Show		20257+4004	TOR 25	AB	191	4.7	51
Show		20257+4004	POP 199	AC	245	59.6	51
Show		20343+3950	MLB 883		310	10.0	51
Show		20319+3920	HJ 1531		318	6.4	51
Show		20339+4034	AG 409		266	9.8	51
Show		20330+4047	CAN 15	AB	113	0.1	53

WDS 20301+4007 : COMPONENTS

	A
B	pa=162.7° sep=3.99"

20301+4007 A

Componente originario normalizzato	AB		Coord arcsec 2000	203008.22+400655.9		Mag	10.87		PmRA	1.00
PmDE	1.0		Tycho2	3157-01213-1		ADS	13927		DM	BD+39 4215

Tycho2

Tycho2	3157-01213-1	Pflag		RAmdeg	307.53425971	DEmdeg	40.11552043
PmRA	1.4	PmDE	0.9	E RAmdeg	32	E DEmdeg	30
E pmRA	1.6	E pmDE	1.6	EpRAm	1987.26	EpDEm	1987.86
Num	3	Q RAmdeg	1.1	Q DEmdeg	0.9	Q pmRA	1.1
Q pmDE	0.9	BTmag	11.122	E BTmag	0.048	VTmag	10.873
E VTmag	0.057	Prox	42	TYC	T	HIP
CCDM		RAdeg	307.53425528	DEdeg	40.11551833	EpRA 1990	1.70
EpDE 1990	1.85	E RAdeg	33.2	E DEdeg	31.0	Posflg
Corr	0.0

20301+4007 B

Componente originario normalizzato	AB		Coord arcsec 2000	203008.32+400652.1		Mag	11.22		PmRA	0.00
PmDE	1.0		Tycho2	3157-01213-2		Calc delta mag	0.35		Calc coord	yes

Tycho2

Tycho2	3157-01213-2	Pflag		RAmdeg	307.53483731	DEmdeg	40.11444683
PmRA	3.1	PmDE	-0.8	E RAmdeg	43	E DEmdeg	42
E pmRA	1.8	E pmDE	1.7	EpRAm	1984.99	EpDEm	1985.23
Num	3	Q RAmdeg	0.1	Q DEmdeg	2.0	Q pmRA	0.1
Q pmDE	2.1	BTmag	11.585	E BTmag	0.066	VTmag	11.217
E VTmag	0.076	Prox	42	TYC	T	HIP
CCDM		RAdeg	307.53482806	DEdeg	40.11444889	EpRA 1990	1.69
EpDE 1990	1.86	E RAdeg	44.9	E DEdeg	43.3	Posflg
Corr	0.0