- Double Stars (Her) -

And (43)	Cet (1)	Del (4)	Lib (1)	Per (27)	UMi (1)
Aql (9)	CMa (2)	Dra (11)	LMi (6)	Psc (10)	Vir (9)
Ari (8)	Cnc (10)	Equ (5)	Lyn (18)	Pup (1)	Vul (3)
Aur (28)	Com (8)	Eri (1)	Lyr (11)	Ser (3)
Boo (20)	CrB (4)	Gem (22)	Mon (1)	Sex (2)
Cam (11)	Crv (1)	Her (16)	Oph (1)	Tau (11)
Cas (17)	CVn (11)	Hya (4)	Ori (9)	Tri (4)
Cep (13)	Cyg (26)	Leo (24)	Peg (16)	UMa (37)

52 Her (**)

Name:	52 Her
Type:	**
Constellation:	Her
Coordinates:	16h49m14.20s / +45°59'00.40"

Components:
		m₁	m₂	ρ	θ	Year
A1866	BC	9m5	9m6	0.3"	266°	2012
BU627	A-BC	4m8	8m4	2.2"	44°	2018



Robert Zebahl
102mm f/11, 280x, Bortle 6 BU627 (A-BC): At 160x the faint component is already beginning to be visible as brightening in the first diffraction ring. At 280x the brightening is quite clearly visible and appears partly clear as a small knot in the first diffraction ring.

BU 130 (**)

Name:	BU130, 90 Her
Type:	**
Constellation:	Her
Coordinates:	17h53m18.03s / +40°00'28.60"

Components:
		m₁	m₂	ρ	θ	Year
		5m3	8m8	1.6"	110°	2009

Robert Zebahl
120mm f/5, 300x, Bortle 6 Not split at 200x and 300x. I used a 120/600mm achromat.

gamma Her (**)

Name:	gamma Her, 20 Her
Type:	**
Constellation:	Her
Coordinates:	16h21m55.24s / +19°09'10.90"

Components:
		m₁	m₂	ρ	θ	Year
DRS58	AD	2m9	8m1	8.3"	176°	2010
SHJ227	AB	3m8	10m1	43.3"	226°	2013
SHJ227	BC	10m1	13m3	82.0"	298°	2015

Robert Zebahl
102mm f/11, 280x, Bortle 6, SQM-L 19.4 AD: It is already the second attempt at this double star. There was nothing perceptible at the best of intentions, which indicates a double star.

STF 2016 (**)

Name:	STF2016
Type:	**
Constellation:	Her
Coordinates:	16h12m07.05s / +11°54'39.20"

Components:
		m₁	m₂	ρ	θ	Year
		8m5	9m6	7.5"	147°	2019


Only 11 arcminutes northwestward is the pretty bright planetary nebula IC4593.
Robert Zebahl
120mm f/5, 40x, Bortle 4, SQM-L 21.0 Conditions in the target region: SQM-L 20.6 Split at 40x with obvious difference in brightness. At 75x easily split.

STF 2021 (**)

Name:	STF2021, 49 Ser
Type:	**
Constellation:	Her
Coordinates:	16h13m18.45s / +13°31'37.20"

Components:
		m₁	m₂	ρ	θ	Year
	AB	7m4	7m5	4.0"	358°	2019



Robert Zebahl
70mm f/5.7, 57x, Bortle 4, SQM-L 20.9 Lovely split. Almost equal pair with relatively close components.

STF 2084 (**)

Name:	STF2084, zeta Her, 40 Her
Type:	**
Constellation:	Her
Coordinates:	16h41m17.16s / +31°36'09.80"

Components:
		m₁	m₂	ρ	θ	Year
		3m0	5m4	1.6"	115°	2018



Robert Zebahl
102mm f/11, 280x, Bortle 6, SQM-L 19.4 After a longer, concentrated observation, a permanent brightening of the first diffraction ring of the primary component could be seen at the correct position angle. The brightening appeared only arch-shaped without any noticeable condensation.
102mm f/11, 224x Faint companion as distinct brightening on the first diffraction ring visible. In steadier moments visible as small, round condensation.

STF 2098 (**)

Name:	STF2098
Type:	**
Constellation:	Her
Coordinates:	16h45m43.47s / +30°00'17.20"

Components:
		m₁	m₂	ρ	θ	Year
	AB	8m8	9m6	14.3"	145°	2015
	AC	8m8	8m8	65.9"	128°	2015
	AD	8m8	11m0	67.6"	18°	2015
	DE	11m0	13m7	5.8"	268°	2015

Robert Zebahl
102mm f/11, 86x, Bortle 6 Already at 28x the components A, B and C were noticeable at first view. At 86x, component D could also be observed very well. The components are all comparatively far apart.

STF 2140 (**)

Name:	STF2140, alpha Her, 64 Her, Ras Algethi
Type:	**
Constellation:	Her
Coordinates:	17h14m38.86s / +14°23'24.90"

Components:
		m₁	m₂	ρ	θ	Year
	AB	3m5	5m4	4.8"	105°	2018



Robert Zebahl
55mm f/9.1, 41x Well split with noticeable difference in brightness.
120mm f/5, 100x, Bortle 6 Easily split with noticeable difference in brightness. A: intensively orange colored, B: slightly orange.

STF 2161 (**)

Name:	STF2161, 75 Her, rho Her
Type:	**
Constellation:	Her
Coordinates:	17h23m40.97s / +37°08'45.30"

Components:
		m₁	m₂	ρ	θ	Year
	AB	4m5	5m4	4.1"	321°	2018

Robert Zebahl
55mm f/9.1, 38x Very nice view. Easily split with visible difference in brightness. Pretty tight. Component A appeared rather white, B slightly yellowish. The double star forms with two other, fainter field stars a conspicuous, acute-angled triangle, whereby the double star marks the tip.

STF 2220 & AC 7 (**)

Name:	STF2220 & AC7, mu Her, 86 Her
Type:	**
Constellation:	Her
Coordinates:	17h46m27.51s / +27°43'14.30"

Components:
		m₁	m₂	ρ	θ	Year
STF2220	A-BC	3m5	9m8	35.5"	249°	2015
AC7	BC	10m2	10m7	0.8"	282°	2015



Robert Zebahl
120mm f/5, 86x, Bortle 6 STF2220 (A-BC): Easy, pretty wide, unequal pair. A appeared yellowish-orange, BC was barely visible with direct vision.

STF 2224 (**)

Name:	STF2224, V826 Her
Type:	**
Constellation:	Her
Coordinates:	17h45m58.44s / +39°19'21.00"

Components:
		m₁	m₂	ρ	θ	Year
	AB	6m7	10m0	7.9"	349°	2015

Robert Zebahl
120mm f/5, 100x, Bortle 6 Well split, rather close and obviously unequal. Primary component appeared slightly yellowish, secondary still visible with direct vision.

STF 2259 (**)

Name:	STF2259
Type:	**
Constellation:	Her
Coordinates:	17h59m03.63s / +30°02'56.10"

Components:
		m₁	m₂	ρ	θ	Year
		7m3	8m4	19.6"	277°	2017

Robert Zebahl
70mm f/5.7, 22x 2020-07-30: At 22x clearly split with noticeable difference in brightness. The components appeared yellowish & grey-bluish. At 44x the colors appeared a bit more intensive: yellowish to bright orange & subtle blue.

STF 2264 (**)

Name:	STF2264, 95 Her
Type:	**
Constellation:	Her
Coordinates:	18h01m30.41s / +21°35'44.80"

Components:
		m₁	m₂	ρ	θ	Year
		4m8	5m2	6.4"	257°	2018

Robert Zebahl
152mm f/5.9, 49x, Bortle 6, SQM-L 19.6 2020-06-23: At 49x eye catching double star, relatively tight with rather small difference in brightness. Beautiful color impression, which was even better visible at 69x: yellowish and yellowish-orange.

STF 2280 (**)

Name:	STF2280, 100 Her
Type:	**
Constellation:	Her
Coordinates:	18h07m49.56s / +26°06'04.40"

Components:
		m₁	m₂	ρ	θ	Year
	AB	5m8	5m8	14.3"	183°	2018

Robert Zebahl
B 16x70, Bortle 7, SQM-L 18.6 2020-07-05: Very nice, rather isolated double star. Striking. Similar bright component, both white.
120mm f/5, 40x, Bortle 5+, SQM-L 20.8 Conditions in the target region: SQM-L 20.5 Very nice, evident double star with equally bright components.
152mm f/5.9, 22x, Bortle 3-, SQM-L 21.3 Beautiful view. Easy to separate with components of the same brightness. It is noticeable that there are no brighter stars in the immediate vicinity, so that the double star stands out very well.

STF 3127 (**)

Name:	STF3127, delta Her, 65 Her
Type:	**
Constellation:	Her
Coordinates:	17h15m01.92s / +24°50'22.50"

Components:
		m₁	m₂	ρ	θ	Year
	AB	3m1	8m3	13.5"	292°	2018

Robert Zebahl
102mm f/11, 86x, Bortle 6 Easy. Pretty wide apart with large difference in brightness.

STT 359 (**)

Name:	STT359
Type:	**
Constellation:	Her
Coordinates:	18h35m30.40s / +23°36'19.90"

Components:
		m₁	m₂	ρ	θ	Year
		6m3	6m6	0.9"	7°	2018



Robert Zebahl
102mm f/11, 160x, Bortle 6 2020-11-10: Clearly elongated with slight notching and little difference in brightness. I estimated the position angle to 0°.