RNO 129 - (YSO) Young Stellar Object in LBN 552

Friday, Aug 22, 2025

RNO 129 - (YSO) Young Stellar Object in LBN 552

By JAUME ZAPATA

A while back (2023), I took a wide-field shot of LDN 1228 and was intrigued by an orange patch in the smaller of the two nebulas in the center. With a longer focal length, I decided to capture several hours of it, because that patch, which refuses to be covered up, is a YSO (Young Stellar Object), a star still contracting to ignite and enter the main sequence phase: RNO 129.

ZWO ASI 533MM Pro

Astronomik LRGB

Sky-Watcher Wave 150i

RC TS 8" (200/1600) + reducer x0.67

N.I.N.A. / PHD2 / Pixinsight / Photoshop