21044+4057 ROE 44

21^h 04^m 26.42^s +40° 56' 55.8" P.A. 43.00 sep 7.2 mag 10.20,10.60 Sp A0IV

Coord 2000	21044+4057	Discov num	ROE 44	Comp		Coord arcsec 2000	21 04 26.42 +40 56 55.8
Date first	1892	Date last	2018	Obs	15
Pa first	43	Pa last	42.8	P.A. Now (θ)	42.8°
Sep first	7.1	Sep last	7.193	Sep. Now (ρ)	7.193"
Mag pri	10.20	Mag sec	10.60	delta mag (ΔM)	0.4	Spectral class	A0IV (white)
Pri motion ra	-008	Sec motion ra	-004
Pri motion dec	-009	Sec motion dec	-004
Notes

rPM=0.532

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3172-00985-1

Gaia DR2

1969276899314122880

WDS 21044+4057 ROE 44 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Roe1908	Ma -	Roe, E.D.	1908AN....178..169R
Roe1908		AN 178, 169, 1908
Roe1909	Ma -	Roe, E.D.	1909AN....181..285R
Roe1909		AN 181, 285, 1909
Roe1910a	Ma -	Roe, E.D.	1910AJ.....26...93R
Roe1910a		AJ 26, 93, 1910
Roe1910b	Ma j	Roe, E.D.	...................
Roe1910b		Journal Astronomique 1, no. 4, 25, 1910
Roe1910c	Ma -	Roe, E.D.	1910AN....183..197R
Roe1910c		AN 183, 197, 1910
Roe1910d	Ma j	Roe, E.D.	1910PA.....18..354R
Roe1910d		Popular Astronomy 18, 354, 1910
Roe1910e	Ma j	Roe, E.D.	1910PA.....18..554R
Roe1910e		Popular Astronomy 18, 554, 1910
Roe1911a	Ma -	Roe, E.D.	1911AN....187...39R
Roe1911a		AN 187, 39, 1911
Roe1911b	Ma -	Roe, E.D.	1911AN....188..373R
Roe1911b		AN 188, 373, 1911
Roe1911c	Ma -	Roe, E.D.	1911AN....190..137R
Roe1911c		AN 190, 137, 1911
Roe1911d	Ma j	Roe, E.D.	1911PA.....19..383R
Roe1911d		Popular Astronomy 19, 383, 1911
Roe1914	Ma j	Roe, E.D.	1914AN....199..169R
Roe1914		AN 199, 169, 1914
Roe1915	Ma -	Roe, E.D.	1915AN....202..99R
Roe1915		AN 202, 99, 1915
Roe1917	Ma j	Roe, E.D.	1917AN....204...21R
Roe1917		AN 204, 21, 1917
Roe1918	Ma -	Roe, E.D.	1918AJ.....31..149R
Roe1918		AJ 31, 149, 1918
Roe1919a	Ma j	Roe, E.D.	1919AJ.....32....6R
Roe1919a		AJ 32, 6, 1919
Roe1919b	Ma j	Roe, E.D.	1919AJ.....32...25R
Roe1919b		AJ 32, 25, 1919
Roe1932A	-	Roe, E.D.	1932QB821.A43......
Roe1932A		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
21044+4057	ROE 44		1998	6	43	7.0	10.20	10.60	A0IV	D	210426.42+405655.8
21044+4057	ROE 44		2008	7	43	7.1	10.20	10.60	A0IV	D	210426.42+405655.8
21044+4057	ROE 44		2016	9	43	7.0	10.20	10.60	A0IV		210426.42+405655.8
21044+4057	ROE 44		2018	14	43	7.2	10.20	10.60	A0IV		210426.42+405655.8

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

WDS 21044+4057 ROE 44 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21044+4057 ROE 44 : MEASURES

No records found.

WDS 21044+4057 : 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 21044+4057 : ALADIN DSS IMAGE @ 21^h 04^m 26.42^s +40° 56' 55.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21044+4057 ROE 44 : 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		21044+4057	ROE 44		43	7.2
Show		21037+4053	LDS2485		226	15.3	10
Show		21054+4058	TDT2732		64	0.7	12
Show		21019+4055	TDT2704		316	1.1	29
Show		21050+4125	COU2298		147	0.9	29
Show		21032+4024	ES 1986		21	4.2	37
Show		21050+4021	COU2135		351	0.2	37
Show		21032+4131	LDS2484		33	8.7	39
Show		21014+4037	HDS2995		97	0.1	40
Show		21070+4125	BU 988	AB	223	1.2	41
Show		21070+4125	BU 988	AC	5	9.3	41
Show		21039+4138	STTA214	BC	244	106.3	41
Show		21039+4138	STTA214	AB	184	57.4	42
Show		21027+4130	LDS2482		53	3.0	43
Show		21082+4055	AG 414		108	5.3	43
Show		21068+4021	ES 1989		174	6.0	46
Show		21048+4144	COU2434		189	0.9	48
Show		21071+4134	HJ 1613		5	16.4	48
Show		21023+4139	ROE 21		224	9.1	48
Show		21076+4137	BVD 159		49	4.3	54
Show		21002+4027	TDT2688		104	0.5	58
Show		21031+3959	LDS2483	AB	41	30.6	60
Show		21061+4001	COU2224		67	0.4	60
Show		21032+4158	COU2432		24	0.8	63
Show		20599+4016	COU2431	Aa,Ab	205	2.2	67
Show		20599+4016	ENG 79	AB	219	165.9	67
Show		20599+4016	LEP 98	AD	258	999.9	67
Show		20599+4016	BUP 221	AC	154	210.3	67
Show		20599+4016	LSC 1	Aa1,2	257	0.0	67
Show		20599+4016	SEI1363	CR	37	8.7	67
Show		21072+3958	TDT2765	Aa,Ab	149	0.4	68
Show		21072+3958	ES 1990	AB	38	5.8	68
Show		20599+4016	BUP 221	BC	107	203.7	69
Show		21010+3959	A 1438		257	0.3	71
Show		20585+4121	BLL 53		352	169.0	72
Show		21000+4004	KUI 103	AB	58	0.9	73
Show		21000+4004	RAO 689	AC	300	2.4	73
Show		20581+4043	COU2430	AB	254	0.4	74
Show		20581+4043	COU2430	AB,C	176	3.0	74
Show		21029+3946	SEI1379		7	19.4	74
Show		21099+4013	COU1968		104	0.2	76
Show		21014+3948	SEI1370		141	20.7	78
Show		20576+4058	A 400		69	1.9	78
Show		21109+4034	ES 255		34	4.6	78
Show		21012+3949	SEI1369		309	4.5	79
Show		21092+4152	LDS2491		184	17.0	80
Show		21054+3937	CRB 137		352	29.3	81
Show		21115+4115	STT 431	AB	127	2.6	82
Show		21115+4115	STT 431	AC	356	55.4	82
Show		21115+4115	STT 431	BC	354	57.1	82
Show		21098+4001	GRV 430	AB	351	47.1	83

WDS 21044+4057 : COMPONENTS

	A
B	pa=35.0° sep=6.44"

21044+4057 A

Componente originario normalizzato	AB		Coord arcsec 2000	210426.42+405655.8		Mag	10.2		Spectral class	A0IV (white)
PmRA	-8.00		PmDE	-9.0		Tycho2	3172-00985-1

Tycho2

Tycho2	3172-00985-1	Pflag		RAmdeg	316.11010143	DEmdeg	40.94884792
PmRA	-6.1	PmDE	-7.1	E RAmdeg	19	E DEmdeg	17
E pmRA	1.4	E pmDE	1.4	EpRAm	1989.71	EpDEm	1990.17
Num	3	Q RAmdeg	2.3	Q DEmdeg	0.6	Q pmRA	2.3
Q pmDE	0.6	BTmag	10.541	E BTmag	0.030	VTmag	10.200
E VTmag	0.029	Prox	999	TYC	T	HIP
CCDM		RAdeg	316.11012056	DEdeg	40.94886417	EpRA 1990	1.60
EpDE 1990	1.71	E RAdeg	18.8	E DEdeg	17.3	Posflg
Corr	0.1

21044+4057 B

Componente originario normalizzato	AB		Coord arcsec 2000	210426.75+405701.1		Mag	10.6		PmRA	-4.00
PmDE	-4.0		Calc delta mag	0.4		Calc coord	yes