STF 1399 (**)
|
| Name: |
STF1399 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
09h57m02.21s / +19°45'44.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m7 |
8m4 |
30.2" |
176° |
2017 |
|
| Robert Zebahl |
70mm f/5.7, 22x
Easy to split with nice distance and obviously unequal. A conspicuous group of fainter stars is nearby. Main component appeared in a warm-white, fainter somehow darker (partly bluish, partly slightly orange).
|
|
|
STF 1424 (**)
|
| Name: |
STF1424, gamma Leo, 41 Leo, Algieba |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h19m58.35s / +19°50'29.40" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
2m4 |
3m6 |
4.9" |
126° |
2019 |
|
|
|
|
|
|
|
| Robert Zebahl |
55mm f/9.1, 38x, Bortle 6-, SQM-L 19.1
At 38x split, but very tight with noticeable difference in brightness. At 56x and higher beautiful view of both components, which seemed to have similar colors.
|
|
55mm f/9.1, 59x, Bortle 6, SQM-L 19.5
Very nice unequal double. A appeared yellow-orange, B rather white-bluish.
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|
70mm f/5.7, 100x, Bortle 6-
At 67x still a relatively close pair, but well separated with quite a clear difference in brightness. At 100x easy to separate and visible color difference: A yellowish to slightly orange, B white-yellowish.
|
|
102mm f/11, 125x, Bortle 7, SQM-L 18.8, Seeing 3/5
Very nicely separated with wonderful contrast in brightness and color. Primary component slightly orange, companion yellowish.
|
|
120mm f/5, 66x, Bortle 6-, SQM-L 19.1
At 48x easily seen as double star. It appeared as '8'. At 66x pretty tight with visible difference in brightness.
|
|
|
STF 1426 (**)
|
| Name: |
STF1426 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h20m32.32s / +06°25'47.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB-C |
7m3 |
9m4 |
7.6" |
9° |
2018 |
|
AB |
8m0 |
8m3 |
0.9" |
313° |
2018 |
|
|
|
|
|
|
|
| Robert Zebahl |
102mm f/11, 160x, Bortle 6-
AB-C: Quite large angular distance and therefor easy to separate. The C component was pretty faint.
|
|
102mm f/11, 160x, Bortle 6-
AB: At first glance elongated, on closer look visible as '8'.
|
|
|
STF 1431 (**)
|
| Name: |
STF1431 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h25m35.12s / +08°46'35.40" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m8 |
9m1 |
3.6" |
76° |
2019 |
|
| Robert Zebahl |
70mm f/5.7, 67x
Separable at 67x, but very close together with a clear difference in brightness. Easy to separate at 100x. Next to it the star 44 Leo shines in a striking, bright orange.
|
|
|
STF 1450 (**)
|
| Name: |
STF1450, 49 Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h35m02.16s / +08°39'01.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
5m8 |
7m9 |
2.2" |
156° |
2017 |
|
| Robert Zebahl |
70mm f/5.7, 133x
B component appeared as clear brightening on the first diffraction ring of the primary component in the correct position angle.
|
|
|
STF 1487 (**)
|
| Name: |
STF1487, 54 Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h55m36.80s / +24°44'59.00" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
4m5 |
6m3 |
6.8" |
112° |
2019 |
|
| Robert Zebahl |
55mm f/9.1, 27x
At 27x split, but very tight with noticeable difference in brightness. At 71x easy to separate. No visible color difference.
|
|
|
STF 1517 & BU1431 (**)
|
| Name: |
STF1517 & BU1431, WDS11137+2008 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h13m40.99s / +20°07'43.30" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
| STF1517 |
AB |
7m5 |
8m0 |
0.7" |
314° |
2017 |
| BU1431 |
AB-C |
7m5 |
10m8 |
246.1" |
97° |
2015 |
|
|
|
|
|
|
|
| Robert Zebahl |
102mm f/11, 160x, Bortle 7, SQM-L 18.8, Seeing 3/5
STF1517 (AB): 2020-03-27: At 160x the double star immediately appears elongated, but without any noticeable notching or difference in brightness. At 224x not really better. Observation at moderate seeing (3/5).
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|
152mm f/5.9, 225x, Bortle 7, SQM-L 18.8, Seeing 3/5
STF1517 (AB): 2020-03-27: Clearly elongated. In some moments the double star appeared notched with a small difference in brightness. Observation at moderate seeing (3/5).
|
|
|
STF 1521 (**)
|
| Name: |
STF1521 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h15m20.95s / +27°34'15.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m7 |
8m1 |
3.8" |
97° |
2019 |
|
| Robert Zebahl |
70mm f/5.7, 67x, Bortle 6-, NELM 5m0, SQM-L 19.1
At 44x still very close, finely separated pair with visible difference in brightness, rather faint. At 67x nicely separated, at 100x very easy. Colors were not clearly visible.
|
|
|
STF 1537 (**)
|
| Name: |
STF1537 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h24m28.94s / +20°37'16.50" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
8m2 |
9m1 |
2.3" |
358° |
2019 |
|
| Robert Zebahl |
102mm f/11, Bortle 7, SQM-L 18.8, Seeing 3/5
2020-03-27: At 62x almost, at 86x clearly separated, whereby the components are still very close together. The companion appears rather dim. The slight difference in brightness is already visible at 62x. At 125x the double star shows itself clearly separated. The primary component appears more white, the companion appears a bit warmer in color.
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|
152mm f/5.9, Bortle 7, SQM-L 18.8, Seeing 3/5
2020-03-27: At 49x the double star presents itself clearly elongated, at 69x it is almost separable. The two diffraction disks are well visible. At 100x very nicely separated at still quite small separation. The primary component appears rather white, the companion shows up in a warmer hue. A moderate difference in brightness is visible.
|
|
|
STF 1540 (**)
|
| Name: |
STF1540, 83 Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h26m45.32s / +03°00'47.20" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
6m5 |
7m5 |
28.4" |
150° |
2018 |
|
| Robert Zebahl |
55mm f/9.1, 16x, Bortle 6, SQM-L 19.5
Wonderful double with slight color contrast in a very nice field. Together with tau Leo stunning view. Slightly unequal. A appeared white-yellowish, B rather grey-bluish.
|
|
|
STF 1547 (**)
|
| Name: |
STF1547, 88 Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h31m44.94s / +14°21'52.20" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
6m3 |
9m1 |
15.5" |
332° |
2018 |
|
|
|
|
|
|
|
| Robert Zebahl |
55mm f/9.1, 42x, Bortle 6, SQM-L 19.5
Well split with moderate distance. Primary component appeared white-yellowish. Pretty unequal pair.
|
|
|
STF 1552 (**)
|
| Name: |
STF1552, 90 Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h34m42.50s / +16°47'48.90" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AC |
6m3 |
9m8 |
63.4" |
235° |
2018 |
|
AB |
6m3 |
7m3 |
3.1" |
209° |
2018 |
|
| Robert Zebahl |
55mm f/9.1, 42x, Bortle 6, SQM-L 19.5
AB: A and B very tight and unequal. Much fainter component C very wide apart. All components almost in line. Very nice view.
|
|
|
STFA 19 (**)
|
| Name: |
STFA19, 84 Leo, tau Leo |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
11h27m56.23s / +02°51'22.50" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
5m0 |
7m5 |
89.2" |
181° |
2019 |
|
| Robert Zebahl |
55mm f/9.1, 16x, Bortle 6, SQM-L 19.5
Wonderful double with slight color contrast in a very nice field. Together with 83 Leo stunning view. Noticeable unequal. A appeared white-yellowish with a hint of orange, B grey-bluish.
|
|
|
STT 215 (**)
|
| Name: |
STT215 |
| Type: |
** |
| Constellation: |
Leo |
| Coordinates: |
10h16m16.05s / +17°44'24.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m2 |
7m5 |
1.5" |
176° |
2019 |
|
|
|
|
|
|
|
| Robert Zebahl |
70mm f/5.7, 133x
Appeared partly separated, partly as '8'. Brightness seemed to be equal.
|
|
|