20309+4913 S 755 AB (HD 195710)

20^h 30^m 52.72^s +49° 12' 47.5" P.A. 278.00 sep 59.9 mag 6.64,9.72 Sp A2 dist. 147.28 pc (480.43 l.y.)

Coord 2000	20309+4913	Discov num	S 755	Comp	AB	Coord arcsec 2000	20 30 52.72 +49 12 47.5
Date first	1825	Date last	2015	Obs	26
Pa first	279	Pa last	277.5	P.A. Now (θ)	277.5°
Sep first	61.4	Sep last	59.866	Sep. Now (ρ)	59.866"
Mag pri	6.64	Mag sec	9.72	delta mag (ΔM)	3.08	Spectral class	A2 (white)
Pri motion ra	+001	Sec motion ra	+003
Pri motion dec	-012	Sec motion dec	-016
Notes	N (See Notes)

rPM=0.275 (< 0.3, Physical double)

This double is physical.

20309+4913 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 195710	49731	20 30 53 +49 12 48	S 755 AB	2015	26	278	59.9	6.64	9.72	3.08		<===
Show		49731	20 30 53 +49 12 48	ES 2695 AC	2015	4	118	20.2	6.64	13.50	6.86

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 195710	Constellation	Cygnus	SAO	49731	HIP	101206
Tycho2	3581-00823-1	Gaia DR2	2180033903772460160	HD	195710	GC	28556
BD	BD+48 3148	Distance	147.28	Distance ly	480.43

WDS 20309+4913 S 755 AB (HD 195710) : NOTES

discov_num	notes	refcode
S 755	AB: H 4 23.	MEv2010
	B is BD+48@3146.

REFERENCES

refcode	metd	author	reference
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)

DISCOVERER

idgroup	discov	author
1	ES	Espin, T.E.
96	S	South, J.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20309+4913	S 755	AB	2002	24	278	59.3	6.64	9.72	A2	N D	203052.72+491247.5
20309+4913	S 755	AB	2003	25	278	60.0	6.64	9.72	A2	N D	203052.72+491247.5
20309+4913	S 755	AB	2012	26	278	60.2	6.64	9.72	A2	N D	203052.72+491247.5
20309+4913	S 755	AB	2015	26	278	59.9	6.64	9.72	A2	N	203052.72+491247.5

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

WDS 20309+4913 S 755 AB (HD 195710) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20309+4913 S 755 AB (HD 195710) : MEASURES

No records found.

WDS 20309+4913 (HD 195710) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20309+4913 (HD 195710) : ALADIN DSS IMAGE @ 20^h 30^m 52.72^s +49° 12' 47.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20309+4913 S 755 AB (HD 195710) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20309+4913	S 755	AB	278	59.9
Show		20309+4913	ES 2695	AC	118	20.2
Show		20313+4913	S 756		327	60.7	5
Show		20301+4857	BU 669	AB	336	15.0	18
Show		20301+4857	BU 669	AC	89	55.8	18
Show		20301+4857	GUI 32	AD	44	131.1	18
Show		20318+4933	BU 1136		215	0.7	22
Show		20300+4940	HU 589		204	1.6	29
Show		20271+4909	ES 802		238	5.1	38
Show		20330+4950	MCA 61	AB	233	0.1	43
Show		20330+4950	RBR 49	AC	136	4.3	43
Show		20306+4956	TDT2331		235	0.9	44
Show		20273+4948	BVD 269		288	11.1	50
Show		20320+5001	HEI 909		234	2.7	50
Show		20280+4829	HU 587		338	0.6	53
Show		20281+4822	TDT2302		249	1.4	58
Show		20348+4830	ES 666		317	3.0	58
Show		20347+4957	ES 2696		147	12.2	58
Show		20304+5014	ES 1100		285	2.6	63
Show		20246+4904	HEI 908		331	2.4	64
Show		20281+4815	ES 803		351	6.1	65
Show		20273+4815	TDT2286		50	1.7	69
Show		20311+5022	ES 1101		240	2.2	69
Show		20246+4842	ES 2694		321	11.9	70
Show		20341+4804	YSC 116		270	0.2	76
Show		20334+4752	J 4		1	2.6	85
Show		20223+4930	TDT2212		356	2.5	86
Show		20387+4830	HJ 1558		205	4.4	89
Show		20286+5039	HJ 1524		125	5.3	90
Show		20378+5018	DAM 293		286	4.8	94
Show		20323+5048	RAO 615		157	0.8	96
Show		20405+4855	ES 807		154	3.9	97
Show		20406+4900	ES 509		285	8.6	97
Show		20243+4800	TDT2240		175	0.6	99
Show		20287+4737	GRF 17		102	160.1	99
Show		20396+4823	RAO 616		122	1.8	100
Show		20376+5028	L 49		82	4.1	100
Show		20233+4807	A 727		61	0.9	100
Show		20380+5025	DAM 294		258	4.1	101
Show		20383+4804	ES 89	AB	209	21.5	101
Show		20383+5023	HU 588	AB	245	2.0	101
Show		20361+4745	HJ 1549		55	5.5	102
Show		20379+4757	GUI 33	BC	199	76.6	103
Show		20379+4757	STF2707	AB	29	21.8	103
Show		20379+4757	STF2707	AC	195	55.3	103
Show		20379+4757	ES 2697	AD	192	17.5	103
Show		20379+4757	HDS2944	Ca,Cb	29	0.4	104
Show		20397+4806	ES 806	AB	267	7.0	105
Show		20397+4806	ES 806	AC	24	11.9	105
Show		20389+4803	CNT 7		82	3.5	106
Show		20418+4929	HEI 910		201	1.6	108

WDS 20309+4913 : COMPONENTS

	A	B
B	pa=281.4° sep=39.55"
C	pa=129.6° sep=15.09"	pa=109.1° sep=53.33"

20309+4913 A

Name	HD 195710	Coord arcsec 2000	203052.72+491247.5	Mag	6.64	Spectral class	A2 (white)
PmRA	1.00	PmDE	-12.0	SAO	49731	HIP	101206
Tycho2	3581-00823-1	HD	195710	GC	28556	BD	BD+48 3148

Tycho2

Tycho2	3581-00823-1	Pflag		RAmdeg	307.71968069	DEmdeg	49.21319485
PmRA	2.7	PmDE	-14.3	E RAmdeg	4	E DEmdeg	4
E pmRA	1.3	E pmDE	1.3	EpRAm	1991.55	EpDEm	1991.56
Num	11	Q RAmdeg	1.0	Q DEmdeg	1.5	Q pmRA	1.2
Q pmDE	1.6	BTmag	6.685	E BTmag	0.014	VTmag	6.641
E VTmag	0.010	Prox	600	TYC	T	HIP	101206
CCDM		RAdeg	307.71967083	DEdeg	49.21322778	EpRA 1990	1.72
EpDE 1990	1.74	E RAdeg	3.8	E DEdeg	3.8	Posflg
Corr	0.1

SAO

SAO	49731	DelFlag		RA1950		PmRA1950	0
DE1950		PmDE1950	-0.002	Vmag	6.5	SpType	A2
Double code		Source	70	CatNum	28556	DM	BD+48 3148
DMcomp		BDsup		HD	195710	M HD	0
GC	28556	RA1950rad	5.36399166	DE1950rad	0.8559788	PmRA2000	0.0004
PmDE2000	-0.004

Hipparcos

Catalog	H	HIP	101206	Proxy		RAhms	20 30 52.72
DEdms	+49 12 47.6	Vmag	6.65	VarFlag		R Vmag	H
RAdeg	307.72	DEdeg	49.2132	AstroRef		Plx	7.05
CCDM	20309+4913	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	195710	BD	BD+48 3148
CD		CP		Dm number	+48 3148	VIred	0.04
SpType	A2	R SpType		Coord arcsec 2000	203052.72+491247.6

Hipparcos 2

HIP	101206	Sn	5	So	0	Nc	1
RArad	5.3707214456	DErad	0.8589328831	Plx	6.79	PmRA	0.66
PmDE	-12	E RArad	0.26	E DErad	0.25	E Plx	0.3
E pmRA	0.29	E pmDE	0.27	Hpmag	6.6696	E Hpmag	0.0008
SHp	0.007	VA	0	BV	0.051	E BV	0.007
VI	0.06

CCDM

Ccdm	20309+4913	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.32	DDEs	-11.5
R dRAs	10	Year		Theta		Rho
Obs	3	Vmag	6.6	Sp	A2	PmNote	*
PmRA	-10	PmDE	6	Dm number	+48 3148	Cat1	BD
Name2	+49 1682	Cat2	AGK2/3	HD	195710	M HD
ADS BDS	B10309	M ADS BDS		N IDS		IDS	20278N4853A
HIC	101206

20309+4913 B

Coord arcsec 2000	203048.76+491255.3		Mag	9.72		PmRA	3.00		PmDE	-16.0
Calc delta mag	3.08		Calc coord	yes

CCDM

Ccdm	20309+4913	RComp		Comp	B	Note1
Note2		Discov num	S 755	DRAs		DDEs
R dRAs		Year	1825	Theta	278	Rho	60.4
Obs	10	Vmag	9.2	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	B10309	M ADS BDS		N IDS		IDS	20278N4853B
HIC

20309+4913 C

Coord arcsec 2000	203053.91+491237.9		Mag	13.5		PmRA	3.00		PmDE	1.0
Calc delta mag	6.86		Calc coord	yes