IC1848 – Soul Nebula (2015/11/06)

Stars are forming in the Soul of the Queen of Aethopia. More specifically, a large star forming region called the Soul Nebula can be found in the direction of theconstellation Cassiopeia, who Greek mythology credits as the vain wife of a King who long ago ruled lands surrounding the upper Nile river. The Soul Nebula houses several openclusters of stars, a large radio source known as W5, and huge evacuated bubbles formed by the winds of young massive stars. Located about 6,500 light years away, the Soul Nebula spans about 100 light years and is usually imaged next to its celestial neighbor the Heart Nebula (IC 1805). The featured image appears mostly red due to the emission of a specific color of light emitted by excited hydrogen gas.” (from APOD)

The weather in Bay Area in Nov. is usually not great as the rain season starts, but this year it had two great weekends before El Nino hit us. I took 2 panel mosaic Ha in 11/06, and 2 panel mosaic O3 in 11/13. The final bi-color image has pleasant yellow color, which is very different from true RGB or NB images.

Date: 11/06/2015
Location: Henry Coe State Park, Morgan Hill, CA
Condition: excellent transparency, excellent seeing
Exposure: Two panels Ha – 20’x13/panel, Dark/Bias/Flat calibrated
Date: 11/13/2015
Location: Henry Coe State Park, Morgan Hill, CA
Condition: excellent transparency, excellent seeing
Exposure: Two panels O3 – 20’x14/panel, Dark/Bias/Flat calibrated

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NGC2237/2244 – Rosette Nebula (2016/02/07)

The Rosette Nebula is not the only cosmic cloud of gas and dust to evoke the imagery of flowers — but it is the most famous. At the edge of a large molecular cloud in Monoceros, some 5,000 light years away, the petals of this rose are actually a stellar nursery whose lovely, symmetric shape is sculpted by the winds and radiation from its central cluster of hot young stars. The stars in the energetic cluster, cataloged as NGC 2244, are only a few million years old, while the central cavity in the Rosette Nebula, cataloged as NGC 2237, is about 50 light-years in diameter. The nebula can be seen firsthand with a small telescope toward the constellation of the Unicorn (Monoceros).” (from APOD)

NGC2244_20160207

Date: 02/07/2016
Location: Panoche Hills BLM, CA
Condition: excellent transparency, excellent seeing
Equipment: AT111EDT on CGEM, guided by OAG-8300/ST-i. STF8300M+FW8+Baader LRGB
Exposure: L – 10’x15, R/G/B – 10’x5 each, Dark/Bias/Flat calibrated
Software: Pixinsight

M51- Whirlpool Galaxy L(HaR)GB (2016/03/16)

I took some RGB in Feb 2016, and Ha subs in Mar 2016. Combined with last year’s Lum I completed my M51 project.

M51_2016_02_07_LRGB

M51 Whirlpool Galaxy LRGB

M51_2016_03_16_L(Ha)RGB

M51 Whirlpool Galaxy L(HaR)GB

Date: 02/07/2016
Location: Panoche Hills BLM, CA
Condition: excellent transparency, excellent seeing
Equipment: AT111EDT on CGEM, guided by OAG-8300/ST-i. STF8300M+FW8+Baader LRGB
Exposure: R/G/B – 900sx6 each, Dark/Bias/Flat calibrated
Software: Pixinsight

Data: 03/16/2016
Location: Monte Bello OSP, CA
Condition: very good transparency, excellent seeing
Equipment: AT111EDT on CGEM, guided by OAG-8300/ST-i. STF8300M+FW8+Baader LRGBHaO3S2
Exposure: R/G/B – 1200sx13, Dark/Bias/Flat calibrated
Software: Pixinsight