File:Messier 20 - Trifid Nebula in Sagittarius.jpg

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Captions

Captions

This is a photo of the trifid nebula, taken using a telescope with a monochrome camera and broadband (RGB) and narrowband (Ha and Oiii) filters, then combined to get a color photo.

Summary[edit]

Description
English: The Trifid Nebula or Messier 20 is a gas cloud in the constellation Sagittarius. This nebula is quite good when observed in Indonesia, because the highest point of its daily motion is close to the zenith for people in Indonesia. This image was taken using a Ritchey-Chretien reflecting telescope in Institut Teknologi Sumatera at 19 & 20 September 2023, the presence of a support on the secondary mirror causes diffraction in the star captured by the camera (X-shaped). This image was taken using a telescope with a monochrome camera and broadband (RGB) and narrowband (Ha and Oiii) filters, then combined to get a color photo. The red color indicates hydrogen emission at the Hydrogen Alpha wavelength. The blue color is Oxygen emission, and there are also molecular clouds that reflect the light of the hot young foreground stars in blue. Total exposure time is about 5 hours of data.
Bahasa Indonesia: Nebula Trifid atau Messier 20 adalah sebuah awan gas di rasi Sagittarius. Nebula ini cukup baik ketika diamati di Indonesia, karena titik tertinggi gerak hariannya mendekati zenith bagi orang yang ada di Indonesia. Gambar ini diambil menggunakan teleksop pemantul, jenis ritchey-chretien di Institut Teknologi Sumatera pada 19 dan 20 September 2023, adanya penyangga pada cermin sekunder menyebabkan difraksi pada bintang yang tertangkap kamera (berbentuk X). Gambar ini diambil menggunakan teleskop dengan kamera monkrom dan filter broadband (RGB) serta narrowband (Ha dan Oiii), kemudian digabungkan untuk mendapatkan foto berwarna. Warna merah menunjukkan adanya emisi hidrogen pada panjang gelombang Hidrogen Alpha. Warna biru adalah emisi Oksigen, serta ada juga awan molekul yang memantulkan cahaya bintang muda latar depan yang panas berwarna biru. Total waktu bukaan adalah sekitar 5 jam.
English: The Trifid Nebula or Messier 20 is a gas cloud in the constellation Sagittarius. This nebula is quite good when observed in Indonesia, because the highest point of its daily motion is close to the zenith for people in Indonesia. This image was taken using a Ritchey-Chretien reflecting telescope in Institut Teknologi Sumatera at 19 & 20 September 2023, the presence of a support on the secondary mirror causes diffraction in the star captured by the camera (X-shaped). This image was taken using a telescope with a monochrome camera and broadband (RGB) and narrowband (Ha and Oiii) filters, then combined to get a color photo. The red color indicates hydrogen emission at the Hydrogen Alpha wavelength. The blue color is Oxygen emission, and there are also molecular clouds that reflect the light of the hot young foreground stars in blue. Total exposure time is about 5 hours of data.
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Author Astro.srscat

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