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.
|
|
|
mu Her (**)
|
| Name: |
mu Her, 86 Her |
| Type: |
** |
| Constellation: |
Her |
| Coordinates: |
17h46m27.51s / +27°43'14.30" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
A-BC |
3m5 |
9m8 |
35.5" |
249° |
2015 |
|
| Robert Zebahl |
120mm f/5, 86x, Bortle 6
A-BC: Easy, pretty wide, unequal pair. A appeared yellowish-orange, BC was barely visible with direct vision.
|
|
|
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 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.
|
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