The Trapezium And Proplyds (トラペジウムと原始惑星系円盤) Messier 42

It's also good to look for Proplyd using an IR filter from a Japanese astronomy senior. I received a comment a few days ago, and immediately aimed the telescope at Trapezium.
The IR685 arrived a week after the IR850, so I shot with both this time. This photo uses stars taken with IR685.
The image of M42 taken with the L-eNhance filter is also superimposed so that the positional relationship can be seen.
Trapezium lists 14 types of Proplyds just for the references I used to identify them. Those that were readily identifiable are circled in green. I plan on looking for it again later today.
from top right
142-301
171-340
177-341
d206-446
d244-440

The results of IR850 and IR685 were completely different, but that topic will be discussed later.
新潟の巨匠から、IRフィルター使ってProplydを探すのも良いですね〜。と数日前にコメントいただき、早速Trapeziumに望遠鏡を向けてみた。
IR850の1週間後にIR685も届いたので、今回は両方で撮影してみた。この写真はIR685で撮影した星を採用。
位置関係がわかるようL-eNhanceフィルターで撮影したM42の姿も重ねてある。
トラペジウムには今回特定するために使ったリファレンスだけでも14種類のProplydが掲載されていた。そのうちすぐに特定できたものを緑の円で囲ってある。また後日ゆっくり探してみる予定。
右上から
142-301
171-340
177-341
d206-446
d244-440
IR850とIR685の結果はまるで異なっていたが、その話題はまた後日。

Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 95.1%)
Shot Date:5th / Oct / 2022 01:17 (UTC+7)
Celestron C11 PRIME FOCUS (280mm F/10 f/2800mm)
filter: OPTOLONG L-eNhance,SVBONY IR685
L-eNhance :10X60Secs 10minutes
L-eNhance :30X30Secs 15minutes
IR685:20X15Secs 5 minutes
Total 30 minutes.
Palette: Target :Auto HOO
Gain: 2600(70%)、11M mode BIN1
CCD: QHY294C Pro
Mount :iOptron CEM70G
Guide: SVBony 60mm F/4, QHY290C
Controler:NINA,PHD2
Pre-Processing APP Drizzle None
Post-Processing PI,PS
Shot By Taro Seki Astropical.uk

Trapezium_IR850_IR685__2_L_eNh_30Sec_60sec_ABE-Edit01-finish