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Kelvin Phoon | all galleries >> Galleries >> nebulae > IC1805 SII Ha OIII, Ha as Luminance - closeup panorama
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October, 2009

IC1805 SII Ha OIII, Ha as Luminance - closeup panorama

San Diego, CA

Reprocessed using Ha as Luminance instead of Ha+15%SII+15%OIII. RGB stars applied.
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Emission Nebula IC1805 (the "Heart" Nebula) and Melotte 15 open star cluster,
in Hubble Palette R:G:B mapped to [SII] Ha {OIII].
Apogee U8300, APM 115/805 refractor with FF32 flattener, Astrodon 3nm narrowband and E-Series Gen2 RGB.
Mounted on 14" LX200GPS fork and Mitty Wedge, guided by Meade DSI Pro II through Astrodon MMOAG.
SII: 3 x 45 minutes
Ha: 9 x 45 minutes
OIII: 5 x 45 minutes
RGB: 4 x 5 minutes each

Captured with Maxim DL, calibrated in Nebulosity, stacked in Maxim, processed in PhotoShop
using modifications around J-P Metsavainio's Tone Mapping narrowband technique (now modified to use starless stretching only).

Awards: Honorable Mention, Night Sky Photography, San Diego County Fair 2010


other sizes: small medium large original auto
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