STF 2525 (**)
|
Name: |
STF2525 |
Type: |
** |
Constellation: |
Vul |
Coordinates: |
19h26m33.71s / +27°19'21.90" |
Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
8m2 |
8m4 |
2.1" |
289° |
2018 |
|
|
|
|
|
Robert Zebahl |
152mm f/5.9, 100x, Bortle 6, SQM-L 19.6
2020-06-24: At 49x slightly elongated, at 69x just separated with visible difference in brightness. At 100x nice view with clear separation and slight difference in brightness, but no visible colors.
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|
|
STF 2655 (**)
|
Name: |
STF2655 |
Type: |
** |
Constellation: |
Vul |
Coordinates: |
20h14m04.52s / +22°13'21.50" |
Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
7m9 |
8m0 |
6.2" |
3° |
2017 |
|
AC |
7m9 |
10m1 |
60.5" |
154° |
2016 |
|
Robert Zebahl |
70mm f/5.7, 31x
AB: 2020-07-29: At 22x clearly visible as '8' and almost separated. At 31x well separated with still very close and almost equally bright components. Color was not visible.
|
|
|
STF 2769 (**)
|
Name: |
STF2769 |
Type: |
** |
Constellation: |
Vul |
Coordinates: |
21h10m32.07s / +22°27'16.70" |
Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
6m7 |
7m4 |
18.2" |
300° |
2018 |
|
Robert Zebahl |
B 16x70, Bortle 6, SQM-L 19.2
2020-08-19: The double star is located in a rather poor environment and is therefore very conspicuous. Clearly visible brightness difference with rather small separation. The primary component appeared white-bluish and thus quite cool, while the companion showed a warm hue (yellowish/orange?).
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