Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  California Nebula  ·  NGC 1499  ·  The star ξPer
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First light SharpStar 76EDPH / NGC 1499, 


            Christophe Perroud
First light SharpStar 76EDPH / NGC 1499
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First light SharpStar 76EDPH / NGC 1499

Technical card

Imaging telescopes or lenses: Sharpstar 76EDPH

Imaging cameras: Nikon D5500 Full Spectrum Mod by JTW Astronomy

Mounts: iOptron SkyGuider Pro

Guiding telescopes or lenses: TS 8x50 Finder

Guiding cameras: Lacerta M-Gen II autoguider

Focal reducers: 0.8x for the Sharpstar 76EDPH

Software: PixInsight 1.8 Ripely  ·  Adobe Systems Inc. Photoshop CS2

Filters: Hutech IDAS LPS D1

Dates:Oct. 21, 2020

Frames:Hutech IDAS LPS D1: 25x180" ISO200

Integration: 1.2 hours

Darks: ~10

Flats: ~20

Bias: ~20

Avg. Moon age: 5.29 days

Avg. Moon phase: 28.45%

Bortle Dark-Sky Scale: 4.00

Temperature: 9.00

Basic astrometry details

Astrometry.net job: 3963703

RA center: 4h 1' 57"

DEC center: +36° 21' 3"

Pixel scale: 4.702 arcsec/pixel

Orientation: 355.390 degrees

Field radius: 2.282 degrees

Resolution: 2900x1950

Locations: Pied du Jura, Champagne, VD, Switzerland

Data source: Backyard


Hi folks,
This is the first light of my brand new refractor : SharpStar 76EDPH w/ focal reducer I've received early October (see rev C). I couldn't get so much integration time during this experimental session, as the clouds (as usual...) were playing with my obstination to manage some tests (polar alignement, mount balancing, framing, etc...).
Well, after spending 3-4 hours on the field, I was finally able to collect 120 min of datas, but they turned to be only 75 min after on-screen evaluation... What a lovely hobby, isn't it? ;-)))
Despite the lack of integration, I'm very pleased with the overall quality of this image - reducer works well but I've to fix some tilt - and guess it will make a great combo with the Nikon D5500 for the next years. The resolution is about 2.35 ''/pix, which is not bad considering my Bortle-4-location and the sky quality above it.
As you can see, this is an attempt at the beautiful California Nebula, located some 1'800 l-y away in the constellation of Perseus. This huge complex spans 2.5° in the sky and looks like the USA's most populous state (Wiki said!). I would love to visit it again as soon as the weather will be more astro-friendly :-P
Stay safe and healthy guys and keep your eyes up in the sky :-)



  • Final
    First light SharpStar 76EDPH / NGC 1499, 


            Christophe Perroud
  • First light SharpStar 76EDPH / NGC 1499, 


            Christophe Perroud
  • First light SharpStar 76EDPH / NGC 1499, 


            Christophe Perroud


Description: Annotated version made with PixInsight

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Description: The new toy atop the iOptron SkyGuider Pro. Almost 4.8 kg of rigs incl. DSLR, guidescope, red dot finder, Lacerta MGEN...but no worry at all ;-)

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Sky plot

Sky plot


First light SharpStar 76EDPH / NGC 1499, 


            Christophe Perroud