The California Nebula (Also known NGC 1499 or Sh2-220) is an emission nebula located in the constellation Perseus.
NGC 1499 is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a Hα filter (isolates the Hα line at 656 nm) or Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth. Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, Xi Persei (also known as Menkib).
| Object | NGC1499 California Nebula |
| Constellation: | Perseus |
| Position: | RA 04h 03m 18.0s Dec 036° 25' 00'' |
| Apparent Size: | 2.5° long |
| Apparent Magnitude: | 6.0 |
| Distance in light years: | 1300 ly |
| Photo Data | |
| Date of Expose: | 02 Aug 2023 - 21 Dec 2024 |
| Location: |
IC Astronomy Observatory Spain Oria, Almería, Spain , ASL 1250m GPS: 37.4988 N / -2.42178 W |
| Telescope: | SPA-1-CMOS: Takahashi FSQ-106EDX4, f/d 3.6/382mm |
| Camera: | QHY 600M Pro, 3.76μm, 9576px x 6382px, @ T sensor = -15°C |
| Field of View: | 5.35° x 3.57° |
| Pixel Scale/Resolution: | 2.01 arcsec/px |
| Expose frames/times: | S 71x300s, H 78x300s, O 66x300s |
| Total expose: | 17h 55min |
| Filter: | Astrodon SII, Ha, OIII |
| Mount: | Paramount MX+ |
| Software: | Siril 1.4, Photoshop CC |
| Remarks: |
© Photos and photo data by Peter Cerveny
© Object description/intro text fully or partially by Wikipedia,
which is released under the Creative Commons Attribution-ShareAlike 4.0 International License