20447+2703 TDT 2515 (HD 340915)

20^h 44^m 41.33^s +27° 02' 49.0" P.A. 278.00 sep 0.4 mag 11.65,12.03

Coord 2000	20447+2703	Discov num	TDT2515	Comp		Coord arcsec 2000	20 44 41.33 +27 02 49.0
Date first	1991	Date last	2016	Obs	2
Pa first	269	Pa last	277.5	P.A. Now (θ)	277.5°
Sep first	0.8	Sep last	0.4	Sep. Now (ρ)	0.4"
Mag pri	11.65	Mag sec	12.03	delta mag (ΔM)	0.38	Spectral class
Pri motion ra	+000	Sec motion ra	+000
Pri motion dec	-002	Sec motion dec	-002
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 340915		Constellation	Vulpecula		Tycho2	2178-01641-1		Gaia DR2	1856258133457503744
HD	340915

WDS 20447+2703 TDT 2515 (HD 340915) : NOTES

No records found.

REFERENCES

No records found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20447+2703	TDT2515		1991	1	269	0.8	11.65	12.03			204441.33+270249.0
20447+2703	TDT2515		2016	2	278	0.4	11.65	12.03			204441.33+270249.0

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WDS 20447+2703 TDT 2515 (HD 340915) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20447+2703 TDT 2515 (HD 340915) : MEASURES

No records found.

WDS 20447+2703 (HD 340915) : VIRTUAL EYEPIECE

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WDS 20447+2703 (HD 340915) : ALADIN DSS IMAGE @ 20^h 44^m 41.33^s +27° 02' 49.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20447+2703 TDT 2515 (HD 340915) : 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		20447+2703	TDT2515		278	0.4	1
Show		20435+2709	TDT2500		353	2.2	17
Show		20449+2640	STJ 56		251	0.8	24
Show		20430+2649	BUP 216		97	65.2	27
Show		20425+2704	TDT2484		199	0.5	29
Show		20461+2638	BRT 217		80	4.3	31
Show		20429+2732	J 513		163	4.0	39
Show		20461+2740	TDT2527		94	2.0	42
Show		20480+2704	COU 826		123	1.3	44
Show		20463+2740	BRT3362	CD	84	6.3	44
Show		20463+2740	MLB 712	AB	43	8.5	44
Show		20463+2740	MLB 712	AC	126	24.1	44
Show		20412+2703	COU1038	AB	90	1.2	48
Show		20412+2703	KPP4398	AC	215	43.4	48
Show		20433+2616	COU1039		237	1.0	51
Show		20481+2727	BU 66		169	1.1	52
Show		20429+2754	MLB 709		323	2.7	57
Show		20482+2624	FYM 66	EF	301	15.1	60
Show		20486+2733	MLB 713		348	7.3	61
Show		20482+2624	STF2728	AB	25	10.5	62
Show		20482+2624	STF2728	AC	213	19.4	62
Show		20482+2624	FYM 66	AF	295	129.1	62
Show		20482+2624	FYM 66	AD	193	59.8	62
Show		20482+2624	FYM 66	AE	294	114.1	62
Show		20447+2601	HEI 182		207	0.9	63
Show		20482+2622	COU 827	Aa,Ab	332	0.6	63
Show		20482+2622	TDT2548	AB	148	0.6	63
Show		20490+2637	COU 828	AB	189	0.9	63
Show		20490+2637	COU 828	AC	95	24.9	63
Show		20444+2558	COU 726		273	1.2	66
Show		20411+2751	TDT2471		2	0.2	68
Show		20481+2753	ES 510	AB	337	43.9	69
Show		20481+2753	ES 510	BC	229	8.9	69
Show		20456+2553	J 1074		299	2.3	69
Show		20499+2711	HJ 1579		130	3.8	71
Show		20393+2714	HJ 1557	AB	207	13.1	72
Show		20393+2714	TDT2454	Ba,Bb	46	0.9	72
Show		20474+2808	BRT3363		159	4.0	75
Show		20391+2710	CVR 228		320	43.3	76
Show		20433+2549	BUP 217	AB	285	17.2	76
Show		20433+2549	BUP 217	AC	208	39.7	76
Show		20433+2549	BUP 217	AD	102	387.7	76
Show		20433+2549	BUP 217	AE	286	442.7	76
Show		20387+2701	TDT2447		164	0.6	80
Show		20399+2753	MLB 613		143	8.2	81
Show		20503+2631	WSI 119		189	4.6	83
Show		20448+2825	AG 411		20	2.9	83
Show		20391+2624	J 570		82	4.9	86
Show		20409+2553	J 3106		355	4.8	87
Show		20434+2536	HO 138	CD	6	3.5	88
Show		20434+2536	HO 138	AB	343	3.0	89

WDS 20447+2703 : COMPONENTS

	A
B	pa=278.4° sep=0.36"

20447+2703 A

Componente originario normalizzato	AB		Name	HD 340915		Coord arcsec 2000	204441.33+270249.0		Mag	11.65
PmRA	0.00		PmDE	-2.0		Tycho2	2178-01641-1		HD	340915

Tycho2

Tycho2	2178-01641-1	Pflag		RAmdeg	311.17211462	DEmdeg	27.04692194
PmRA	0.3	PmDE	-1.5	E RAmdeg	32	E DEmdeg	34
E pmRA	1.9	E pmDE	1.8	EpRAm	1984.56	EpDEm	1984.86
Num	5	Q RAmdeg	0.2	Q DEmdeg	1.1	Q pmRA	0.3
Q pmDE	1.2	BTmag	11.556	E BTmag	0.066	VTmag	11.186
E VTmag	0.078	Prox	479	TYC	T	HIP
CCDM		RAdeg	311.17211083	DEdeg	27.04693694	EpRA 1990	1.70
EpDE 1990	1.65	E RAdeg	45.3	E DEdeg	43.9	Posflg
Corr	-0.1

20447+2703 B

Componente originario normalizzato	AB		Coord arcsec 2000	204441.30+270249.1		Mag	12.03		PmRA	0.00
PmDE	-2.0		Calc delta mag	0.38		Calc coord	yes