- Superthin Galaxies (Tri) -
Here I will present some very thin galaxies with an axis ratio of at least 1:7. Nevertheless this value is calculated from the given angular size, so the visual impression can differ.
NGC 973 (Gx)
Image source: DSS II (blue) - 5'×5'
|
Name: |
NGC973, UGC2048 |
Type: |
Gx, Sy2 |
Constellation: |
Tri |
Coordinates: |
02h34m20.10s / +32°30'20.01" |
Brightness / Size: |
12m.8 / 3.7'×0.5' |
|
Robert Zebahl |
8" f/6, 80x, Bortle 4-, SQM-L 20.8
At 80x and 150x very thin, elongated, tapering endings, evenly bright.
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DIFFICULT
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René Merting |
12.5" f/4.5, 144x, SQM-L 21.1
bei 144x mit viel Konzentration und field sweeping ist die Galaxie blickweise leicht länglich zu erkennen - bei 206x wird es ein wenig einfacher, hier ist ab und an ein 3:1 elongierter Nebelhauch erkennbar
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DIFFICULT
|
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UGC 1281 (Gx)
Image source: DSS II (blue) - 5'×5'
|
Name: |
UGC1281, PGC6699 |
Type: |
Gx |
Constellation: |
Tri |
Coordinates: |
01h49m31.71s / +32°35'16.20" |
Brightness / Size: |
12m.6 / 4.5'×0.5' |
|
Robert Zebahl |
8" f/6, 133x, Bortle 5, NELM 5m.5+, SQM-L 20.8
Glimpsed with averted vision as very faint, very elongated nebula.
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DIFFICULT
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8" f/6, 133x, Bortle 4, NELM 6m.0+, SQM-L 21.1
Very thin, elongated, evenly bright. Faint.
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MODERATE
|
René Merting |
12.5" f/4.5, 206x, SQM-L 21.3
bei 206x zeigt sich die Superthin indirekt als diffuser länglicher gleichmäßig heller Schimmer - Elongation 2,5:1
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MODERATE
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