20368+2951 BTN 1 (HD 334816)

20^h 36^m 57.91^s +29° 49' 56.0" P.A. 1.00 sep 13.8 mag 10.38,11.41 Sp A

Coord 2000	20368+2951	Discov num	BTN 1	Comp		Coord arcsec 2000	20 36 57.91 +29 49 56.0
Date first	1894	Date last	2017	Obs	15
Pa first	13	Pa last	1.2	P.A. Now (θ)	1.2°
Sep first	15.3	Sep last	13.833	Sep. Now (ρ)	13.833"
Mag pri	10.38	Mag sec	11.41	delta mag (ΔM)	1.03	Spectral class	A (white)
Pri motion ra	+027	Sec motion ra	+001
Pri motion dec	+006	Sec motion dec	-005
Notes

rPM=1.021

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 334816		Constellation	Cygnus		Tycho2	2169-00386-1		Gaia DR2	1857731964375762048
HD	334816

WDS 20368+2951 BTN 1 (HD 334816) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Btn1929a	Ma -	Burton, H.E.	1929AJ.....39...72B
Btn1929a		AJ 39, 72, 1929
Btn1929b	Ma j	Burton, H.E.	1929PUSNO..12..235.
Btn1929b		Pub. USNO 12, 235, 1929
Btn1947	Ma j	Burton, H.E.	1942PUSNO..15...73.
Btn1947		Pub. USNO 15, 73, 1947

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20368+2951	BTN 1		1997	6	3	14.0	10.38	11.41		D	203657.91+294956.0
20368+2951	BTN 1		2011	7	2	13.9	10.38	11.41		D	203657.91+294956.0
20368+2951	BTN 1		2012	9	2	13.9	10.38	11.41		D	203657.91+294956.0
20368+2951	BTN 1		2015	10	1	13.8	10.38	11.41	A		203657.91+294956.0
20368+2951	BTN 1		2017	12	2	13.8	10.38	11.41	A		203657.91+294956.0

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WDS 20368+2951 BTN 1 (HD 334816) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20368+2951 BTN 1 (HD 334816) : MEASURES

No records found.

WDS 20368+2951 (HD 334816) : VIRTUAL EYEPIECE

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WDS 20368+2951 (HD 334816) : ALADIN DSS IMAGE @ 20^h 36^m 57.91^s +29° 49' 56.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20368+2951 BTN 1 (HD 334816) : 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		20368+2951	BTN 1		1	13.8
Show		20371+2953	MLB 663		265	4.3	4
Show		20368+2955	TDT2421		159	0.4	6
Show		20374+2958	HJ 1547		8	17.0	10
Show		20378+2951	TDT2435		143	2.3	12
Show		20378+2943	A 742	BC	132	1.2	13
Show		20361+2955	TDT2407		124	0.5	13
Show		20378+2943	A 742	A,BC	343	56.8	14
Show		20381+2953	A 744		272	0.7	16
Show		20381+2958	A 743		309	1.2	17
Show		20385+2945	COU1172		100	0.3	21
Show		20362+3010	TDT2408		177	0.4	23
Show		20346+3009	TDT2387		216	0.5	37
Show		20344+3004	TDT2384		142	0.5	37
Show		20340+2942	TDS1084		6	1.8	40
Show		20403+2947	STF2714		338	6.8	44
Show		20385+2909	HO 458		101	2.3	47
Show		20387+2910	L 69		89	3.0	47
Show		20339+2923	MLB 481		345	4.0	47
Show		20346+2914	TDT2388	Aa,Ab	297	0.5	48
Show		20346+2914	J 565	AB	48	6.5	48
Show		20346+2914	J 565	AC	88	16.2	48
Show		20406+2948	HO 137	AB	358	0.8	48
Show		20406+2948	GII 290	Aa,Ab	43	0.1	48
Show		20351+3031	COU1327		8	2.7	49
Show		20407+3007	TDT2467		160	0.8	52
Show		20332+3008	BRT 281		154	6.4	52
Show		20396+3030	STF2711		223	2.4	53
Show		20393+2906	HO 136		358	2.6	54
Show		20402+2916	FMR 160		215	59.7	55
Show		20363+3044	TDT2411		90	0.8	55
Show		20328+3007	TDT2356		328	0.4	57
Show		20328+2936	TDT2357		29	0.5	57
Show		20412+3001	COU1173		46	1.1	57
Show		20411+2925	ES 508	AB	232	2.5	60
Show		20411+2925	ES 508	AC	226	18.2	60
Show		20325+2934	TDT2347		309	0.4	60
Show		20401+2906	TDT2458		197	2.4	60
Show		20413+3012	ARY 28	AB	332	62.8	61
Show		20413+3012	ARY 28	AC	35	102.2	61
Show		20416+3000	COU1174		32	0.3	61
Show		20374+2847	MLB 483		69	8.6	63
Show		20413+2922	ARY 29		143	119.3	64
Show		20401+3044	TDT2457	Aa,Ab	139	0.9	69
Show		20401+3044	ROE 15	AB	249	7.6	69
Show		20401+3044	ROE 15	AC	257	30.4	69
Show		20422+2939	COU1175		138	3.5	70
Show		20317+3005	ARY 46	AB	5	91.1	70
Show		20317+3005	ARY 46	AC	92	146.6	70
Show		20327+2903	ARY 27	BC	50	35.3	72
Show		20327+2903	ARY 27	BD	178	90.0	72

WDS 20368+2951 : COMPONENTS

	A
B	pa=1.0° sep=13.83"

20368+2951 A

Componente originario normalizzato	AB	Name	HD 334817	Coord arcsec 2000	203657.91+294956.0	Mag	10.38
Spectral class	A (white)	PmRA	27.00	PmDE	6.0	Tycho2	2169-00386-1
HD	334817

Tycho2

Tycho2	2169-00386-1	Pflag		RAmdeg	309.24129643	DEmdeg	29.83221576
PmRA	25.0	PmDE	7.0	E RAmdeg	20	E DEmdeg	19
E pmRA	1.7	E pmDE	1.7	EpRAm	1990.24	EpDEm	1990.38
Num	4	Q RAmdeg	1.4	Q DEmdeg	1.7	Q pmRA	1.4
Q pmDE	1.7	BTmag	11.109	E BTmag	0.036	VTmag	10.380
E VTmag	0.027	Prox	142	TYC	T	HIP
CCDM		RAdeg	309.24122972	DEdeg	29.83219944	EpRA 1990	1.62
EpDE 1990	1.70	E RAdeg	19.8	E DEdeg	19.1	Posflg
Corr	0.3

20368+2951 B

Componente originario normalizzato	AB	Coord arcsec 2000	203657.93+295009.8	Mag	11.41	PmRA	1.00
PmDE	-5.0	Tycho2	2169-00987-1	HD	334816	Calc delta mag	1.03
Calc coord	yes

Tycho2

Tycho2	2169-00987-1	Pflag		RAmdeg	309.24155374	DEmdeg	29.83612124
PmRA	-0.8	PmDE	-0.5	E RAmdeg	31	E DEmdeg	30
E pmRA	1.8	E pmDE	1.8	EpRAm	1988.30	EpDEm	1988.48
Num	4	Q RAmdeg	0.5	Q DEmdeg	1.5	Q pmRA	0.4
Q pmDE	1.4	BTmag	11.389	E BTmag	0.045	VTmag	11.408
E VTmag	0.066	Prox	142	TYC	T	HIP
CCDM		RAdeg	309.24155583	DEdeg	29.83612222	EpRA 1990	1.64
EpDE 1990	1.69	E RAdeg	31.5	E DEdeg	31.4	Posflg
Corr	0.3