NGC 2023 @ Shui Hau

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NGC 2023 @ Shui Hau

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cyyek » 2011-12-05, 13:44

Date 4 Dec 2011
Time 12am
Telescope: Microtech R200
Focal Ratio: F4
Camera: 300D
ISO:800
Location: Shui Hau Observatory http://shuihau.hkas.org.hk
Mount: HEQ5
Guiding: SG4
Filter: CSL
Stacked by DSS
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ngc2023@cls@300d@r200@iso800@3x300s-2.jpg
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cyyek
 
文章: 70
註冊時間: 2011-02-28, 22:44

Re: NGC 2023 @ Shui Hau

文章willis » 2011-12-07, 07:41

If there is no sign of guiding error in SG4, there maybe flexure. The stars were elongated in one direction.
Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10
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willis
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