20021+3308 SEI 797 (HD 227200)

20^h 02^m 01.60^s +33° 08' 00.6" P.A. 86.00 sep 25.7 mag 10.53,11.00 Sp A5

Coord 2000	20021+3308	Discov num	SEI 797	Comp		Coord arcsec 2000	20 02 01.60 +33 08 00.6
Date first	1893	Date last	2015	Obs	14
Pa first	88	Pa last	86.2	P.A. Now (θ)	86.2°
Sep first	24.8	Sep last	25.742	Sep. Now (ρ)	25.742"
Mag pri	10.53	Mag sec	11.00	delta mag (ΔM)	0.47	Spectral class	A5 (white)
Pri motion ra	-010	Sec motion ra	-006
Pri motion dec	-007	Sec motion dec	-003
Notes

rPM=0.463

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 227200		Constellation	Cygnus		Tycho2	2674-04886-1		Gaia DR2	2034195918442837120
HD	227200

WDS 20021+3308 SEI 797 (HD 227200) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		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
20021+3308	SEI 797		1998	7	86	25.6	10.53	11.00		D	200201.60+330800.6
20021+3308	SEI 797		2002	8	86	25.7	10.53	11.00		D	200201.60+330800.6
20021+3308	SEI 797		2010	9	86	25.7	10.53	11.00	A5		200201.60+330800.6
20021+3308	SEI 797		2015	10	86	25.7	10.53	11.00	A5		200201.60+330800.6

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

WDS 20021+3308 SEI 797 (HD 227200) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20021+3308 SEI 797 (HD 227200) : MEASURES

No records found.

WDS 20021+3308 (HD 227200) : 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 20021+3308 (HD 227200) : ALADIN DSS IMAGE @ 20^h 02^m 01.60^s +33° 08' 00.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20021+3308 SEI 797 (HD 227200) : 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		20021+3308	SEI 797		86	25.7	1
Show		20019+3303	HO 586		172	6.8	6
Show		20024+3320	SEI 803		272	22.6	13
Show		20022+3332	SEI 801		107	7.9	24
Show		20040+3309	SEI 832		219	22.2	24
Show		20004+3252	TDT1910		243	1.8	26
Show		20037+3327	TDT1942		11	0.8	29
Show		20014+3240	SEI 792		5	25.4	30
Show		20039+3329	TDT1945		114	1.3	32
Show		19596+3318	BEW 4		203	18.0	32
Show		20008+3337	SEI 784		159	23.5	33
Show		20027+3340	HO 118	AB	28	3.0	34
Show		20027+3340	DAM 7	AC	308	60.7	34
Show		20025+3341	HO 117	AB	314	5.2	34
Show		20025+3341	BKO 520	AC	24	6.5	34
Show		20027+3340	WAK 13	CD	6	2.9	34
Show		19596+3321	SEI 769		228	23.7	34
Show		20016+3233	TDT1920		154	0.7	36
Show		20031+3343	SEI 818		207	15.1	38
Show		20013+3346	SEI 789		347	16.9	39
Show		20010+3346	SEI 785		137	29.2	40
Show		20007+3232	DAM 313	CD	298	3.8	40
Show		20007+3232	ES 2430	AB	265	6.5	40
Show		20007+3232	ES 2430	AC	39	17.1	40
Show		20053+3307	COU1806		287	1.2	42
Show		20027+3349	SEI 815	AB	358	19.4	42
Show		20027+3349	SEI 816	AC	113	20.6	42
Show		20027+3349	BKO 523	AD	341	5.0	42
Show		20031+3350	SEI 819		148	22.1	44
Show		20026+3352	BKO 521	AB	34	10.5	45
Show		20026+3352	BKO 521	BC	57	5.1	45
Show		20049+3334	ES 2350	AB	224	2.4	45
Show		20049+3334	ES 2350	BC	241	4.4	45
Show		19585+3317	STF2606	AB	146	0.7	45
Show		19585+3317	GUI 29	AC	274	168.6	45
Show		20023+3354	SEI 804		270	27.4	46
Show		20056+3303	TOI1193		255	0.1	46
Show		20042+3230	TDS1039		112	1.4	48
Show		20027+3355	BKO 522	DE	154	4.4	48
Show		20027+3355	BKO 522	AB	340	6.8	48
Show		20027+3355	BKO 522	AD	199	10.6	48
Show		20027+3355	BKO 522	BC	15	1.9	48
Show		20057+3255	TDT1968		244	0.6	48
Show		20039+3349	SEI 833		146	6.0	49
Show		20057+3329	ES 2351		276	5.0	51
Show		20032+3357	SEI 821		93	29.2	52
Show		20016+3358	SEI 794		193	3.8	52
Show		20036+3220	A 380		202	0.4	53
Show		19583+3333	HO 582	AB	314	0.6	53
Show		19583+3333	HO 582	AC	191	8.8	53
Show		19583+3333	WAL 123	AB,D	259	38.7	53

WDS 20021+3308 : COMPONENTS

	A
B	pa=85.5° sep=21.58"

20021+3308 A

Componente originario normalizzato	AB	Name	HD 227200	Coord arcsec 2000	200201.60+330800.6	Mag	10.53
Spectral class	A5 (white)	PmRA	-10.00	PmDE	-7.0	Tycho2	2674-04886-1
HD	227200

Tycho2

Tycho2	2674-04886-1	Pflag		RAmdeg	300.50667139	DEmdeg	33.13349796
PmRA	-8.0	PmDE	-8.3	E RAmdeg	23	E DEmdeg	22
E pmRA	1.4	E pmDE	1.4	EpRAm	1985.83	EpDEm	1986.31
Num	6	Q RAmdeg	0.7	Q DEmdeg	1.6	Q pmRA	0.7
Q pmDE	1.6	BTmag	10.743	E BTmag	0.040	VTmag	10.526
E VTmag	0.044	Prox	257	TYC	T	HIP
CCDM		RAdeg	300.50669028	DEdeg	33.13351722	EpRA 1990	1.62
EpDE 1990	1.67	E RAdeg	26.8	E DEdeg	26.4	Posflg
Corr	0.1

20021+3308 B

Componente originario normalizzato	AB		Coord arcsec 2000	200203.31+330802.3		Mag	11		PmRA	-6.00
PmDE	-3.0		Tycho2	2674-05124-1		Calc delta mag	0.47		Calc coord	yes

Tycho2

Tycho2	2674-05124-1	Pflag		RAmdeg	300.51518218	DEmdeg	33.13393412
PmRA	-4.3	PmDE	-7.0	E RAmdeg	49	E DEmdeg	40
E pmRA	1.9	E pmDE	1.8	EpRAm	1980.95	EpDEm	1981.38
Num	6	Q RAmdeg	1.3	Q DEmdeg	1.1	Q pmRA	1.3
Q pmDE	1.2	BTmag	12.253	E BTmag	0.155	VTmag	11.002
E VTmag	0.068	Prox	257	TYC	T	HIP
CCDM		RAdeg	300.51519222	DEdeg	33.13393472	EpRA 1990	1.62
EpDE 1990	1.69	E RAdeg	56.5	E DEdeg	53.6	Posflg
Corr	0.1