21048+3531 S 773 AB

21^h 04^m 45.64^s +35° 30' 39.1" P.A. 30.00 sep 86.3 mag 9.11,9.58 Sp M0

Coord 2000	21048+3531	Discov num	S 773	Comp	AB	Coord arcsec 2000	21 04 45.64 +35 30 39.1
Date first	1824	Date last	2015	Obs	19
Pa first	30	Pa last	30.3	P.A. Now (θ)	30.3°
Sep first	84.0	Sep last	86.321	Sep. Now (ρ)	86.321"
Mag pri	9.11	Mag sec	9.58	delta mag (ΔM)	0.47	Spectral class	M0 (red)
Pri motion ra	+000	Sec motion ra	+015
Pri motion dec	+004	Sec motion dec	+017
Notes	N (See Notes)

rPM=0.876

This double is not physical.

21048+3531 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 04 46 +35 30 39	S 773 AB	2015	19	30	86.3	9.11	9.58	0.47		<===
Show			21 04 49 +35 31 54	TDT 2727 Ba,Bb	1991	1	170	0.4	10.23	10.28	0.05
Show			21 04 49 +35 31 54	GRV 410 BC	2016	10	82	17.2	9.58	12.90	3.32

Quadruple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2709-01899-1

Gaia DR2

1868187770205309696

WDS 21048+3531 S 773 AB : NOTES

discov_num	notes	refcode
S 773	B is BD+34@4265.

REFERENCES

refcode	metd	author	reference
Grv2004	Eu -	Greaves, J.	2004MNRAS.355..585G
Grv2004		MNRAS 355, 585, 2004
Grv2005a	Es -	Greaves, J.	...................
Grv2005a	+C	Webb Soc., Double Star Circ. 13, 2005 (GRV 973 - 1147)
Grv2005a		(Note: RA for all WDS designations inadvertently truncated to integer minute)
Grv2005b	Pa -	Greaves, J.	...................
Grv2005b		private communication
Grv2005c	C -	Greaves, J.	2005JDSO....1...41G
Grv2005c		JDSO 1, 41, 2005
Grv2006	-	Greaves, J.	...................
Grv2006		private communication, 2006
Grv2006		(measures done using LSPM-north, see Vizier On-line Data Catalog I/298;
Grv2006		Lepine & Shara 2005)
Grv2006b	Es -	Greaves, J.	...................
Grv2006b		private Communication, 2006
Grv2006b		(Reduction of SDSS data. Calculated position is to J2000, but actual observation
Grv2006b		epoch is unknown and proper motion may or may not have been applied.)
Grv2006c	Ey -	Greaves, J.	...................
Grv2006c		private Communication, 2006
Grv2006c		(Reduction of SPM3.3 data. Calculated position is to 1991.25, but actual
Grv2006c		observation epoch is unknown and proper motion may or may not have been applied.)
Grv2008	Es -	Greaves, J.	...................
Grv2008		Webb Soc., Double Star Circ. 16, 2008
Grv2011	C -	Greaves, J.	...................
Grv2011		Webb Soc., Double Star Circ. 19, 2011
Grv2011		These carry a discovery designation of SPM and come from the SPM4 Catalog	2011AJ....142...15G
Grv2019a	Hg u	Greaves, J.	2019JDSO...15...59G
Grv2019a		JDSO 15, 59, 2019
Grv2019b	Hg u	Greaves, J.	2019JDSO...15...77G
Grv2019b		JDSO 15, 59, 2019
Grv2019c	Hg u	Greaves, J.	...................
Grv2019c		private communication, 2019 (17 April 2019 email)
Grv2019d	Hg -	Greaves, J.	.
Grv2019d		private communication, 2019 (4 Nov 2019 email)
Grv2020a	not -	Greaves, J.	.
Grv2020a		private communication, 2020 (14 Mar 2020 email)
Grv2020b	Hg j	Greaves, J.	.
Grv2020b		Webb Soc., Double Star Circ. 28, 23, 2020
Grv2020c	Hg j	Greaves, J.	.
Grv2020c		Webb Soc., Double Star Circ. 28, 35, 2020
Grv2020d	Hg j	Greaves, J.	.
Grv2020d		Webb Soc., Double Star Circ. 28, 39, 2020
Grv2020e	Hg u	Greaves, J.	2020JDSO...16..317G
Grv2020e		JDSO 16, 317, 2020
Grv2020f	Hg	Greaves, J.	2020JDSO...16..362G
Grv2020f		JDSO 16, 362, 2020
Grv2020g	Hg -	Greaves, J.	.
Grv2020g		private communication, 2020 (29 Nov 2020 email)
Grv2020h	Hg -	Greaves, J.	.
Grv2020h		private communication, 2020 (10 Dec 2020 email)
Grv2020i	Hg -	Greaves, J.	.
Grv2020i		private communication, 2020 (12 Dec 2020 email)
Grv2020j	Hg -	Greaves, J.	.
Grv2020j		private communication, 2020 (21 Dec 2020 email)
Grv2021a	not -	Greaves, J.	.
Grv2021a		private communication, 2021 (18 Feb 2021 email)
Grv2021b	not -	Greaves, J.	.
Grv2021b		private communication, 2021 (23 Feb 2021 email)
Grv2021c	Hg+ -	Greaves, J., Rica Romero, F.M. & Otero, S.	2021JDSO...17..137G
Grv2021c	+orb	JDSO 17, 137, 2021
Grv2021d	Hg -	Greaves, J.	.
Grv2021d		private communication, 2021 (23 Aug 2021 email)
Grv2021e	Hg -	Greaves, J.	.
Grv2021e		private communication, 2021 (24 Aug 2021 email)
Grv2022	Hg j	Greaves, J. .
Grv2022		Webb Soc., Double Star Circ. 30, 27, 2022
Grv2023a	Hg -	Greaves, J.	.
Grv2023a		private communication, 2023 (15 Feb 2023 email)
S__1826	Ma -	South, J.	1826RSPT..116....1S
S__1826		Phil. Trans. R. Soc., 116, Pt.1, 1826
S__1844A	Ma -	South, J.	1844QB43.S66.......
S__1844A		cited by Smyth (Cycle of Celestial Objects 2, 1844)
S__1852A	Ma -	South, J.	.
S__1852A		cited by Bishop (Bishop Obs. Astron. Observations 1852)
S__1880A	Ma -	South, J.	1880MNRAS..40..497B
S__1880A		cited by Burnham (MNRAS 40, 497, 1880)
S__1906A	Ma -	South, J.	1906MmRAS..56....1L
S__1906A		cited by Lewis (MemRAS 56, 1, 1906)
S__1906B	Ma -	South, J.	1906QB821.B972.....
S__1906B		cited in BDS (Burnham Double Star Cat., 1906)
S__1913A	Ma -	South, J.	1913QB811.B8.......
S__1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
S__1922A	Ma -	South, J.	1922AN....216...49R
S__1922A		cited by Rabe (AN 216, 49, 1922)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21048+3531	S 773	AB	2004	14	31	85.9	9.11	9.58	M0	N D	210445.64+353039.1
21048+3531	S 773	AB	2015	16	30	86.3	9.11	9.58	M0	N	210445.64+353039.1

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

WDS 21048+3531 S 773 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21048+3531 S 773 AB : MEASURES

No records found.

WDS 21048+3531 : 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 21048+3531 : ALADIN DSS IMAGE @ 21^h 04^m 45.64^s +35° 30' 39.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21048+3531 S 773 AB : 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		21048+3531	S 773	AB	30	86.3
Show		21048+3531	TDT2727	Ba,Bb	170	0.4	2
Show		21048+3531	GRV 410	BC	82	17.2	2
Show		21050+3526	STF2753		335	29.3	6
Show		21042+3530	SEI1388		211	22.1	7
Show		21056+3533	TDT2736		282	0.4	11
Show		21042+3542	SEI1387		133	9.1	13
Show		21059+3528	TDT2744		36	0.6	14
Show		21048+3545	SEI1392		338	4.0	14
Show		21062+3520	GRV 417		143	41.2	21
Show		21044+3551	SEI1390		343	17.4	22
Show		21054+3550	SEI1396		13	27.7	22
Show		21042+3552	TDT2724		181	1.1	23
Show		21028+3534	SEI1375	AB	339	6.5	25
Show		21028+3534	SEI1376	AC	270	11.1	25
Show		21028+3534	BTG 6	BC	235	10.6	25
Show		21028+3534	BTG 6	BD	274	15.9	25
Show		21035+3549	B 2	A,BC	250	138.5	26
Show		21035+3549	B 2	BC	28	2.8	27
Show		21030+3549	SEI1378		222	29.0	28
Show		21050+3559	SEI1395		133	21.1	29
Show		21030+3507	TDS1113		9	2.1	32
Show		21061+3558	SEI1401		333	10.5	33
Show		21029+3554	J 1078	AB	112	2.7	33
Show		21029+3554	J 1078	AC	137	24.4	33
Show		21025+3512	CRB 136		267	20.1	34
Show		21067+3554	GRV 418		216	58.1	34
Show		21059+3459	POP 24		247	8.2	35
Show		21061+3459	POP 25		303	5.5	36
Show		21076+3546	ES 2254		275	8.6	39
Show		21043+3608	HJ 1610		245	11.0	39
Show		21041+3609	SEI1386		152	25.9	40
Show		21058+3610	SEI1398		36	30.5	42
Show		21071+3459	TDT2764		25	1.7	43
Show		21067+3455	HU 691		313	0.4	44
Show		21054+3447	GRV 414		170	67.7	45
Show		21011+3532	SEI1366		279	22.9	45
Show		21013+3554	SEI1368		57	13.3	49
Show		21087+3551	SEI1414	AB	34	10.4	53
Show		21087+3551	TOB 211	AC	355	23.5	53
Show		21012+3602	CLP 1	BC	150	267.2	53
Show		21012+3602	CLP 1	AB	39	74.3	54
Show		21091+3531	POP 26		242	4.8	54
Show		21003+3543	SEI1361		281	20.8	57
Show		21074+3444	COU1814		195	0.3	57
Show		21066+3436	POP 22	XY	352	6.1	57
Show		21066+3436	POP 22	DE	283	7.9	57
Show		21066+3623	SEI1405		314	8.5	57
Show		21046+3628	SEI1391		329	23.9	58
Show		21002+3547	POP 81		204	5.9	58
Show		21066+3436	POP 22	FG	318	7.9	59

WDS 21048+3531 : COMPONENTS

	A	B	Bb
B	pa=30.2° sep=86.10"
Bb	pa=30.4° sep=85.83"	pa=171.6° sep=0.35"
C	pa=36.6° sep=95.84"	pa=79.7° sep=14.06"	pa=78.3° sep=14.08"

21048+3531 A

Coord arcsec 2000	210445.64+353039.1		Mag	9.11		Spectral class	M0 (red)		PmRA	0.00
PmDE	4.0		Tycho2	2709-01899-1

Tycho2

Tycho2	2709-01899-1	Pflag		RAmdeg	316.19017253	DEmdeg	35.51088778
PmRA	-3.3	PmDE	2.4	E RAmdeg	12	E DEmdeg	11
E pmRA	1.6	E pmDE	1.6	EpRAm	1990.40	EpDEm	1990.72
Num	8	Q RAmdeg	0.8	Q DEmdeg	1.6	Q pmRA	0.8
Q pmDE	1.6	BTmag	11.086	E BTmag	0.044	VTmag	9.108
E VTmag	0.015	Prox	859	TYC	T	HIP
CCDM		RAdeg	316.19018139	DEdeg	35.51088306	EpRA 1990	1.68
EpDE 1990	1.82	E RAdeg	12.3	E DEdeg	10.5	Posflg
Corr	0.1

CCDM

Ccdm	21048+3531	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.44	DDEs	-20.2
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.3	Sp		PmNote	*
PmRA	-6	PmDE	14	Dm number	+34 4264	Cat1	BD
Name2	+35 2153	Cat2	AGK2/3	HD		M HD
ADS BDS	B10721	M ADS BDS		N IDS		IDS	21007N3507A
HIC

21048+3531 B

Coord arcsec 2000	210449.19+353153.5		Coord calc	210449.19+353153.5		Mag	9.58		Spectral class	K0 (yellow-orange)
PmRA	15.00		PmDE	17.0		Tycho2	2709-01995-1		Calc delta mag	0.47

Tycho2

Tycho2	2709-01995-1	Pflag		RAmdeg	316.20496623	DEmdeg	35.53153580
PmRA	11.4	PmDE	18.8	E RAmdeg	16	E DEmdeg	13
E pmRA	1.7	E pmDE	1.6	EpRAm	1989.79	EpDEm	1990.15
Num	7	Q RAmdeg	0.8	Q DEmdeg	1.2	Q pmRA	0.8
Q pmDE	1.2	BTmag	10.780	E BTmag	0.036	VTmag	9.581
E VTmag	0.020	Prox	859	TYC	T	HIP
CCDM		RAdeg	316.20493306	DEdeg	35.53149278	EpRA 1990	1.61
EpDE 1990	1.81	E RAdeg	16.5	E DEdeg	13.9	Posflg
Corr	0.2

CCDM

Ccdm	21048+3531	RComp		Comp	B	Note1
Note2		Discov num	S 773	DRAs	1.20	DDEs	53.6
R dRAs	10	Year	1824	Theta	030	Rho	84.0
Obs	5	Vmag	10.2	Sp		PmNote	*
PmRA	23	PmDE	24	Dm number	+34 4265	Cat1	BD
Name2	+35 2154	Cat2	AGK2/3	HD		M HD
ADS BDS	B10721	M ADS BDS		N IDS		IDS	21007N3507B
HIC

21048+3531 Bb

Coord arcsec 2000	210449.19+353153.2		Mag	10.28		PmRA	11.00		PmDE	19.0
Calc delta mag	1.17		Calc coord	yes

21048+3531 C

Coord arcsec 2000	210450.32+353156.0		Mag	12.9		PmRA	21.00		PmDE	17.0
Calc delta mag	3.79		Calc coord	yes