Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  IC1795  ·  IC1805  ·  NGC 896  ·  NGC896  ·  Sh2-190
Getting plate-solving status, please wait...
IC1805 The Heart Nebula (2021 Edition), 


            Eshan Toorabally
Powered byPixInsight

IC1805 The Heart Nebula (2021 Edition)

Imaging telescopes or lenses: William Optics ZENITHSTAR 73 APO

Imaging cameras: ZWO ASI 1600 MM Pro

Mounts: iOptron CEM25P

Guiding telescopes or lenses: ZWO Off Axis Guider

Guiding cameras: ZWO ASI 290MM

Focal reducers: William Optics Flat 73

Software: Stefan Berg (aka Isbeorn) NINA - Nighttime Imaging ‘N’ Astronomy  ·  Starkeeper.it Voyager  ·  Open PHD Guiding PHD2 Guiding 2.6.9  ·  Astro Pixel Processor  ·  PixInsight

Filters: Astrodon Ha 5nm 36mm  ·  Astrodon R Gen.2 E-series 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: Pegasus Astro FocusCube v2  ·  Minix N42-C  ·  ZWO EFW 7 x 36mm

Dates:Feb. 26, 2021Feb. 27, 2021

Astrodon B Gen.2 E-series 36mm: 114x30" (gain: 139.00) -15C bin 1x1
Astrodon G Gen.2 E-series 36mm: 120x30" (gain: 139.00) -15C bin 1x1
Astrodon Ha 5nm 36mm: 28x300" (gain: 200.00) -15C bin 1x1
Astrodon L Gen.2 E-series 36mm: 280x30" (gain: 76.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 148x30" (gain: 200.00) -15C bin 1x1

Integration: 7.8 hours

Darks: ~25

Flats: ~25

Flat darks: ~24

Avg. Moon age: 14.39 days

Avg. Moon phase: 99.51%

Bortle Dark-Sky Scale: 7.00

Temperature: 6.00

Astrometry.net job: 4269388

RA center: 2h 32' 9"

DEC center: +61° 23' 52"

Pixel scale: 0.886 arcsec/pixel

Orientation: 36.984 degrees

Field radius: 1.412 degrees

Resolution: 9171x6885

Locations: Home, London, United Kingdom

Data source: Backyard


After many months of disruption on a personal level, the first image from the backyard after moving back into our house. Our patio is in pieces, so balancing the tripod was interesting. But it was just nice to get back out there!

A full moon night meant that I was always going aim for something that was transiting North, so the Heart fit the bill.

This could also be the last time I use the CEM25P for an image for a while...I've recently upgraded my mount.

I added Ha to Lum using a 35:65 ratio and also added Lum to the Red channel using a 70:30 ratio. I masked the stars, so they would stay RGB.

Thank you for looking and for reading this far!