Lmst

The California Nebula.
Celestron NexStar Evolution 6 + ZWO ASI585MC Pro.
300mm, f2, 180 exposures of 60’’.
#telescope #telescopes #celestron #celestrontelescope #celestronnexstar #nexstarevolution #nexstarevolution6 #zwo #zwoasi #zwoasi585mc #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #california #californianebula #ngc #ngc1499 #s220

#NGC1499: The #CaliforniaNebula
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap250310.htm

#APOD #Nebula

Seven Sisters versus California

On the right, dressed in blue, is the Pleiades. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and most easily visible open clusters on the sky. The Pleiades contains over 3,000 stars, is about 400 light years away, and only 13 light years across. Surrounding the stars is a spectacular blue reflection nebula made of fine dust.

Image Credit & Copyright: Todd Anderson

#astrophotography
#Pleiades
#CaliforniaNebula
#APOD

A common legend is that one of the brighter stars faded since the cluster was named. On the left, shining in red, is the California Nebula. Named for its shape, the California Nebula is much dimmer and hence harder to see than the Pleiades. Also known as NGC 1499, this mass of red glowing hydrogen gas is about 1,500 light years away. Although about 25 full moons could fit between them, the featured wide angle, deep field image composite has captured them both. A careful inspection of the deep image will also reveal the star forming region IC 348 and the molecular cloud LBN 777 (the Baby Eagle Nebula).

Trochę mi się zachorowało[1]. Ale nie o tym miało być.
Wykorzystałem lukę w chmurach i ustawiłem Seestara na Mgławicę Kalifornia.
Trzeba było trochę pozmieniać ustawienia tak aby ją objąć, tzn. obrót o 90° i włączyć tryb mozaiki. Wczoraj, z uwagi na wspomniane chmury, nie ustawiłem maksymalnej wielkości celu (max to x2) tylko x1.4.

Niestety, mozaika nieukończona i jedyne co mogłem zrobić, to edytować plik .JPG na tablecie. Ale pozwoliłem sobie za to popuścić wodze fantazji.
55 minut.

#astrofotografia #niebo #kosmos #astrophotography #universe #astrofotografie #californianebula #ngc1499 #seestars50

[1] Poszedłem do lekarza, bo objawy były dość niepokojące. Dostałem skierowanie na morfologię i mocz. Po przeanalizowaniu wyników z Uncle Google jestem spokojny: nowotwór piersi lub jajników. 🫣

An astrophotograph of the California Nebula (NGC 1499), displaying vibrant red hues surrounded by countless stars. The image captures the intricate dust and gas structures in space, with a timestamp and equipment reference at the bottom.

Astrofotografia Mgławicy Kalifornia (NGC 1499), przedstawiająca żywe czerwone odcienie otoczone niezliczonymi gwiazdami. Obraz przedstawia skomplikowane struktury pyłu i gazu w przestrzeni, ze znacznikiem czasu i odniesieniem do sprzętu na dole.

An astronomical image depicting a nebula with vibrant red and orange hues, filled with numerous stars scattered across a dark background.

Astronomiczny obraz przedstawiający mgławicę o żywych czerwonych i pomarańczowych odcieniach, wypełniona licznymi gwiazdami rozrzuconymi na ciemnym tle.

A not-so-wide angle view of the early winter Milky Way. The frame covers approximately 35 x 25 degrees. (This is the coverage of a 'normal' lens.)

A network of dark dust lanes crisscross all over the Milky Way. Some of the dark knots appear starless. (Next clear night I'll get a close telephoto look at the darkest knots.)

Because of red airglow drifting across the sky, I had some problems making the sky background neutral in color.

Note that image quality is not good in the corners. Star images have 'wings' because of various aberrations.

2nd image shows the original stack of 95 30-second exposures...brown sky, lots of vignetting in the corners.

3rd image shows the beginning of the process to remove vignetting and make the sky background a neutral color.

4th image shows more progress in flattening, and we can boost contrast more to bring out fainter details.

#NewMexico #Astronomy #MilkyWay #Astrophotography #Photography #Auriga #Jupiter #Pleiades #CaliforniaNebula

Dark dust lanes across the Milky Way. Jupiter is the brightest object in the lower left corner. Most of the constellation Auriga is in the upper left quadrant. The Pleiades are in the lower right quadrant, and the pink/red California Nebula is in the upper right quadrant.

Original stack of exposures shows a brown sky and strong vignetting in the corners. If you try to push contrast now, in order to show faint details, the corners will go full black and the brown sky will overwhelm faint features.

We need to 'flatten' the sky and neutralize its color...

Starting to flatten the sky and neutralize the sky background. I have manually selected five regions (green boxes) for the software to analyze...in order to make a corrective model to be applied to the original image.

I have chosen a few more regions of the sky for the software to analyze. Some parts of the image are now fairly well flattened and neutralized. Those sections look reasonably good when I boost contrast.

Eventually I built a decent corrective model that makes the entire image that you see in the first photo.

Weiter geht's! Dieses mal mit dem California Nebel - Sh2-220 / NGC 1499.

Volle Version: https://adfr.io/astro/20240109_ngc1499

#astrodon #astrophotography #astrophoto #narrowband #narrowbandimaging #Sh2-220 #NGC1499 #IC2005 #IC2027 #Menkib #californianebula

Clouds have been over me for a week or more, with more clouds in the forecast. So I decided to reprocess a few pics from last winter when I was even more unsure of what I was doing than I am today. Tried out a few things I've learned with PI & PS since that time.
#astrophotography #CaliforniaNebula

Red hydrogen alpha gas illuminated in the California Nebula

This is my first image of the California Nebula using the Sky-Watcher 130 PDS in combination with a dedicated astro camera and a duo narrowband filter.

Blog: https://smilingj.net/blog/2022/12/2022-12-12_california_nebula.html

#astrophotography #ngc1499 #californianebula #heq5pro #130pds #asi294mcpro #lextreme