M15球狀星團 尋晚睇星順手影左1分鐘exposure. 因為睇星關係無對好極軸，又用左cheap雞focal reducer, 星點唔太圓 Capture details: Date: 20200619 Telescope: Celestron C8-A XLT FocalLength: ~1260mm (0.63X reducer) Mount: Rainbowastro RST-135 Camera: QHYCCD QHY290m Exposure: 0.5s x 120 (total integration 1min) Processed: DSS, PI, PS

祝大家好運，做足保護措施

2020 Partial Solar Eclipse 日偏蝕 @89% Date: 21 Jun 2020 Time: 14:36~17:24 (5mins interval) Telescope: William Optics Star 71 ii Mount: RainbowAstro RST-135 Camera: QHYCCD QHY163M (colourised in PS) Filter: DIY frame with Baader AstroSolar OD 5.0 Integration: 5s per pic, stack 80% each Processed: PIPP, AS, RS6, PS

7月份 零晨/傍晚 肉眼看得見的彗星 Neowise C/2020 F3

Jupiter Opposition (North up) Seeing: 4/5 Capture details: Date: 20200715 14:19 (UTC) Telescope: Celestron C8-A XLT FocalLength: ~4000mm (2X Powermate) Mount: Rainbowastro RST-135 Camera: QHYCCD QHY224C with ADC Exposure: 3mins RGB (30s each); stacked 70% Processed: AS, RS, WinJUPOS, PS

Saturn (North up) Seeing: 4/5 Capture details: Date: 20200715 14:55 (UTC) Telescope: Celestron C8-A XLT FocalLength: ~4000mm (2X Powermate) Mount: Rainbowastro RST-135 Camera: QHYCCD QHY224C + QHY290M with ADC Exposure: 3mins RGB (1min each) + 9mins L (1min each); stacked 70% Processed: AS, RS, WinJUPOS, PS

NGC 7009 Saturn Nebula 在大家追彗星的同時試下觀察一下另類星體 Saturn Nebula是一個行星狀星雲 (planetary nebula), 中心是一顆視星等11.5等的白矮星, 因為外型似土星, 所以有土星星雲之稱 Capture details: Date: 20200718 Telescope: Celestron C8-A XLT FocalLength: ~4000mm (2X Powermate) Mount: Rainbowastro RST-135 Camera: QHYCCD QHY290M Exposure: 3sec * 60frames stacked 80% Processed: AS, PS

Mars (火星), the tiny little red dot (south up) Capture details: Date: 20201003 14:03 (UTC) Telescope: Celestron EdgeHD 8" FocalLength: ~4000mm (2X Powermate) Mount: Rainbowastro RST-135 Camera: QHYCCD QHY462C with ADC Processed: AS, RS, WinJUPOS, PS