Emission nebula
Spider Nebula (IC417)
In Auriga (Aur) • Magnitude 99.0 • 13 arcminutes
Open the free AstroPlanner with Spider Nebula pre-selected, scored against your telescope, location, and the live cloud forecast.
Companion to the Fly Nebula in Auriga, both Ha-bright.
Spider Nebula at a glance
| Catalog IDs | I 417 |
| Type | Emission nebula |
| Constellation | Auriga (Aur) |
| Right ascension | 05h 28m 06s |
| Declination | +34° 25' 26" |
| Apparent magnitude | 99.00 |
| Angular size | 13.0 × 10.0 arcmin |
| Max altitude at 45°N | 79° |
| Best imaging months | Nov, Dec, Jan, Feb |
How to image Spider Nebula
Spider Nebula sits in the constellation Auriga at right ascension 05h 28m 06s and declination +34° 25' 26". To frame and integrate it well, AstroPlanner will compute the optimal moonless window for tonight from your location, the field-of-view fit against your sensor and focal length, the suggested total integration time given your aperture and sky Bortle class, and a cloud-aware schedule that drops it from the plan if your nearest cloud forecast spike overlaps the best altitude window. As an emission nebula, Spider Nebula responds very well to dual-narrowband filters under city skies.