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20111+1611
HLA 27 AF

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20111+1611 HLA 27 AF

20^h 11^m 06.07^s +16° 11' 16.7" P.A. 326.00 sep 7.8 mag 5.40, Sp K0V dist. 20.39 pc (66.51 l.y.)

Coord 2000	20111+1611	Discov num	HLA 27	Comp	AF	Coord arcsec 2000	20 11 06.07 +16 11 16.7
Date first	2015	Date last	2015	Obs	1
Pa first	326	Pa last	325.8	P.A. Now (θ)	325.8°
Sep first	7.8	Sep last	7.81	Sep. Now (ρ)	7.81"
Mag pri	5.40	Mag sec		delta mag (ΔM)		Spectral class	K0V (yellow-orange)
Pri motion ra	-415	Sec motion ra
Pri motion dec	+398	Sec motion dec
Notes	N U K (See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is not physical.

20111+1611 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 191785	105793	20 11 06 +16 11 17	ENG 71 AB	2015	14	148	212.3	7.42	9.67	2.25
Show		105793	20 11 06 +16 11 17	HZG 15 AD	2015	14	255	35.3	7.42	11.21	3.79
Show		105793	20 11 06 +16 11 17	GIC 163 AE	2016	11	95	103.8	7.42	13.93	6.51
Show		105793	20 11 06 +16 11 17	HLA 27 AF	2015	1	326	7.8	5.40				<===
Show			20 11 14 +16 08 24	BUP 205 BC	2015	15	273	61.8	9.67	12.65	2.98

Sextuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Sagitta		SAO	105793		HIP	99452		Tycho2	1618-00827-1
HD	191785		BD	BD+15 4074		Distance	20.39		Distance ly	66.51

WDS 20111+1611 HLA 27 AF : NOTES

discov_num	notes	refcode
GIC 163	Aa = G143-034/G143-035 = GJ 783.2AB.
	Aa,Ab: NLTT 48851/48854	Chm2004
HZG 15	AD: Rectilinear solution by Friedman et al. (2011).	USN2011a

REFERENCES

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)
USN2011a	lin -	Friedman, E.A., Mason, B.D., & Hartkopf, W.I.	2011IAUDS.175....1F
USN2011a		Inf. Circ. 175, 1, 2011

DISCOVERER

discov	author
BUP	Burnham proper motion stars (see Burnham, Carnegie Inst. Wash. #168, 1913)
HLA	Hirsch, L.A., Ciardi, D.R., Howards, A.W., Marcy, G.W., Ruane, G., Gonzalez, E.,
HLA	ApJ 878, 50, 2019
HLA	Hirsch, L.A., Rosenthal, L., Fulton, B.J., Howard, A.W., Ciardi, D.R., Marcy, G.W.,
HLA	Nielsen, E., Petigura, E.A., de Rosa, R.J., Isaacson, H., Weiss, L.M., Sinukoff, E.
USN	Franz, O.G., Gossner, J.L., Josties, F.J., Lindenblad, I.W., Mikesell, A.H.,
USN	Pub. USNO 18, Pt.1, 1963
USN	Kallarakal, V.V., Lindenblad, I.W., Josties, F.J., Riddle, R.K., Miranian, M.,
USN	Mintz, B.F., & Klugh, A.P.
USN	Harrington, R.S., Dahn, C.C., Behall, A.L., Priser, J.B., Christy, J.W., Riepe,
USN	B.Y., Ables, H.D., Guetter, H.H., et al.
USN	Dahn, C.C., Harrington, R., Riepe, B.Y., Christy, J.W., Guetter, H.H.,
USN	Behall, A.L., Walker, R.L., Hewitt, A.V., & Ables, H.D.
USN	Dahn, C.C., Harrington, R.S., Riepe, B.Y., Christy, J.W., Guetter, H.H.,
USN	Kallarakal, V.V., Miranian, M., Walker, R.L., et al.
USN	Harrington, R.S., Kallarakal, V.V., Christy, J.W., Dahn, C.C., Riepe, B.Y.,
USN	Guetter, H.H., Ables, H.D., Hewitt, A.V., et al.
USN	Dahn, C.C., Harrington, R.S., Kallarakal, V.V., Guetter, H.H., Luginbuhl, C.B.,
USN	Riepe, B.Y., Walker, R.L., Pier, J.R., et al.
USN	Harrington, R.S., Dahn, C.C., Kallarakal, V.V., Guetter, H.H., Riepe, B.Y.,
USN	Walker, R.L., Pier, J.R., Vrba, F.J., et al.
USN	Monet, D., Bird A., Canzian B., Dahn C., Guetter H., Harris H., Henden A.,
USN	Levine S., Luginbuhl C., Monet A.K.B., Rhodes A., Riepe B., et al.
USN	Harris, H.C., Dahn, C.C., Dupuy, T.J., Canzian, B., Guetter, H.H., Hartkopf, W.I.,
USN	Ireland, M.J., Leggett, S.K., Levine, S.E., Liu, M.C., Luginbuhl, C.B.,
USN	Monet, A.K.B., Stone, R.C., Subasavage, J.P., Tilleman, T., & Walker, R.L.
USN	Dahn, C.C., Harris, H.C., Subasavage, J.P., Ables, H.D., Canzian, B.J., Guetter,
USN	H.H., Harris, F.H., Henden, A.H., Leggett, S.K., Levine, S.E., Luginbuhl, C.B.,
USN	Monet, A.B., Monet, D.G., Munn, J.A., Pier, J.R., Stone, R.C., Vrba, F.J., Walker,
USN	R.L. & Tillerman, T.M.

WDS HISTORIC DATA

coord_2000

discov_num

comp

epoch

obs

sep

mag_pri

mag_sec

spectr

dm_number

notes

coord_arcsec_2000

20111+1611

HLA 27

2015

326

7.8

5.40

K0V

NU K

201106.07+161116.7

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

WDS 20111+1611 HLA 27 AF : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20111+1611 HLA 27 AF : MEASURES

No records found.

WDS 20111+1611 : 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 20111+1611 : ALADIN DSS IMAGE @ 20^h 11^m 06.07^s +16° 11' 16.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20111+1611 HLA 27 AF : 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		20111+1611	ENG 71	AB	148	212.3	0
Show		20111+1611	HZG 15	AD	255	35.3	0
Show		20111+1611	GIC 163	AE	95	103.8	0
Show		20111+1611	HLA 27	AF	326	7.8	0
Show		20111+1611	BUP 205	BC	273	61.8	4
Show		20108+1614	BKO 527		114	6.0	5
Show		20123+1607	CHE 189		84	18.1	18
Show		20126+1616	BKO 529	BC	296	10.1	23
Show		20126+1616	CHE 67	AB	299	12.1	23
Show		20094+1613	BPM2036		180	38.5	26
Show		20126+1553	BKO 530		169	2.2	28
Show		20124+1550	CHE 193		337	2.3	29
Show		20130+1624	BPM2061		253	81.5	31
Show		20125+1634	BPM2057		233	73.3	31
Show		20108+1541	BPM2045		206	95.4	31
Show		20088+1605	BPM2025		16	67.5	34
Show		20134+1604	CHE 212		12	27.6	34
Show		20134+1611	CHE 211		340	21.6	34
Show		20129+1548	CHE 202	EF	35	4.9	35
Show		20093+1549	BPM2035		356	99.0	35
Show		20129+1548	CHE 201	AB	322	27.8	35
Show		20129+1548	CHE 201	AE	270	27.9	35
Show		20129+1548	CHE 201	AC	63	51.2	35
Show		20129+1548	CHE 202	CD	347	11.0	35
Show		20136+1613	CHE 214		334	26.9	36
Show		20087+1603	BPM2023		235	109.0	37
Show		20102+1646	BPMA241		355	169.0	37
Show		20137+1608	CHE 216		290	25.9	37
Show		20102+1536	J 1874		116	2.9	38
Show		20096+1540	BPM2037		277	81.8	38
Show		20137+1609	STF2651	AB	279	0.9	39
Show		20137+1609	SHY 768	AC	84	999.9	39
Show		20135+1555	CHE 213		34	22.8	39
Show		20138+1609	BKO 536		256	8.8	40
Show		20091+1638	BPM2034		159	61.3	40
Show		20139+1611	BPM2065	AB	37	72.8	40
Show		20122+1534	BKO 528	BC	112	6.1	41
Show		20122+1534	CHE 187	AB	18	17.5	41
Show		20139+1611	BPM2066	BC	319	100.1	41
Show		20084+1627	BPM2020		63	18.6	42
Show		20084+1558	BPM2019		226	106.1	42
Show		20132+1541	BKO 532	BC	186	7.1	43
Show		20132+1541	CHE 207	AB	263	23.6	43
Show		20123+1650	BPM2056		137	25.4	43
Show		20096+1648	STF2634	AB	15	4.0	44
Show		20096+1648	STF2634	AC	301	65.0	44
Show		20141+1612	CHE 223		82	8.5	44
Show		20105+1655	BUP9008		222	84.5	46
Show		20123+1529	CHE 190		233	33.7	46
Show		20139+1549	CHE 219		60	10.6	47
Show		20079+1621	HEI 76	AB	357	0.2	47

WDS 20111+1611 : COMPONENTS

	A	B	C	D	E
B	pa=147.7° sep=203.68"
C	pa=164.4° sep=175.30"	pa=273.1° sep=61.78"
D	pa=254.8° sep=35.32"	pa=318.8° sep=216.70"	pa=333.0° sep=179.06"
E	pa=94.8° sep=103.84"	pa=358.1° sep=163.60"	pa=19.4° sep=169.81"	pa=89.8° sep=137.57"
F	pa=325.8° sep=7.81"	pa=327.6° sep=211.48"	pa=343.6° sep=182.72"	pa=62.1° sep=33.60"	pa=278.0° sep=108.93"

20111+1611 A

Name	HD 191785	Coord arcsec 2000	201106.07+161116.7	Mag	7.42	Spectral class	K1V (yellow-orange)
PmRA	-415.00	PmDE	398.0	SAO	105793	HIP	99452
Tycho2	1618-00827-1	HD	191785	GC	28012	BD	BD+15 4074

Tycho2

Tycho2	1618-00827-1	Pflag		RAmdeg	302.77531309	DEmdeg	16.18799689
PmRA	-413.1	PmDE	398.2	E RAmdeg	5	E DEmdeg	6
E pmRA	1.2	E pmDE	1.1	EpRAm	1991.32	EpDEm	1991.09
Num	11	Q RAmdeg	0.6	Q DEmdeg	0.5	Q pmRA	0.7
Q pmDE	0.5	BTmag	8.373	E BTmag	0.017	VTmag	7.422
E VTmag	0.011	Prox	999	TYC	T	HIP	99452
CCDM		RAdeg	302.77631667	DEdeg	16.18705806	EpRA 1990	1.60
EpDE 1990	1.51	E RAdeg	5.4	E DEdeg	5.6	Posflg
Corr	0.0

SAO

SAO	105793	DelFlag		RA1950		PmRA1950	-0.0287
DE1950		PmDE1950	0.404	Vmag	7.3	SpType	K0
Double code		Source	70	CatNum	28012	DM	BD+15 4074
DMcomp		BDsup		HD	191785	M HD	0
GC	28012	RA1950rad	5.27452974	DE1950rad	0.27982716	PmRA2000	-0.0288
PmDE2000	0.401

Hipparcos

Catalog	H	HIP	99452	Proxy		RAhms	20 11 06.33
DEdms	+16 11 13.3	Vmag	7.34	VarFlag		R Vmag	H
RAdeg	302.776	DEdeg	16.187	AstroRef		Plx	48.83
CCDM	-414.22	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD		BD	BD+15 4074
CD		CP		Dm number	+15 4074	VIred	0.85
SpType	K1V	R SpType		Coord arcsec 2000	201106.33+161113.3

Hipparcos 2

HIP	99452	Sn	5	So	0	Nc	1
RArad	5.284444355	DErad	0.28251696	Plx	49.04	PmRA	-414.75
PmDE	398.26	E RArad	0.48	E DErad	0.44	E Plx	0.65
E pmRA	0.5	E pmDE	0.56	Hpmag		E Hpmag	0.0009
SHp	0.011	VA	0	BV	0.83	E BV	0.01
VI	0.87

20111+1611 B

Coord arcsec 2000	201113.62+160824.5		Coord calc	201113.62+160824.5		Mag	9.67		Spectral class	K0 (yellow-orange)
PmRA	-24.00		PmDE	-27.0		Delta magnitude	2.25

20111+1611 C

Coord arcsec 2000	201109.34+160827.8		Mag	12.65		PmRA	2.00		PmDE	1.0
Delta magnitude	5.23		Coordinate calculated	yes

20111+1611 D

Coord arcsec 2000	201103.70+161107.4		Mag	11.21		PmRA	0.00		PmDE	-3.0
Delta magnitude	3.79		Coordinate calculated	yes

20111+1611 E

Coord arcsec 2000	201113.25+161108.0		Mag	13.93		Spectral class	M4 (red)		PmRA	-432.00
PmDE	399.0		Delta magnitude	6.51		Coordinate calculated	yes

20111+1611 F

Coord arcsec 2000

201105.77+161123.2

Delta magnitude

7.42

Coordinate calculated

yes