Introduction to Astrophotography Meets RAG aided Large Language Models.
Astrophoto exposure time: about 2 hours.
AstroLLM Assistant generated caption below.
AstroLLM Assistant generated:
"Distance from Earth in light-years": 2,500,000
"Size or Diameter in light-years": 152,000
*"Constellation": Andromeda
*"NGC number": NGC 224
"Messier number": M31
*"Galaxy type": Barred spiral galaxy
The galaxy type is called a barred spiral galaxy because it has a central bar-shaped structure and spiral arms that are tightly wound.
Summary of Messier 110:
M110 is a dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy in the Local Group. It has a morphological classification of pec dE5, indicating a dwarf elliptical galaxy with a flattening of 50%. The galaxy lacks evidence for a supermassive black hole at its center and has a mass of (1.1–1.8)×104 M☉ with a temperature of 18–22 K. The interstellar gas has (4–7)×106 M☉. The galaxy has been observed to have novae and has a peculiar structure with patches of dust and young blue stars near its center. It is approximately 2,690,000 light-years away from Earth and has a magnitude of 8.
Summary of Messier 32:
"Messier 32 (M32) is a small, spherical satellite galaxy of Andromeda Galaxy, located approximately 2,500,000,000,000 kilometers away from Earth. It is a dwarf elliptical galaxy, with a diameter of approximately 8,000 light-years. M32 is thought to have formed from the tidal disruption of a larger galaxy by the gravitational forces of Andromeda. It is one of the closest galaxies to the Milky Way and is visible to the naked eye on a clear night as a faint, small cloud in the constellation Andromeda."
Astrophoto exposure time: about 50 minutes.
AstroLLM generated caption below.
AstroLLM Assistant generated:
"Distance from Earth in light-years": 2,730,000
"Size or Diameter in light-years": 61,100
"Constellation": Triangulum
"NGC number": NGC 598
"Messier number": M33
"Galaxy type": SA(s)cd
The Triangulum Galaxy is classified as a SA(s)cd galaxy, which means it is a spiral galaxy with a disk shape and a central nucleus. The "S" prefix indicates that it is a disk-shaped galaxy with prominent arms of gas and dust that spiral out from the nucleus. The "(s)" notation indicates that the spiral arms emerge directly from the nucleus or central bar, rather than from an inner ring. The "cd" suffix represents a stage along the spiral sequence that describes the openness of the arms. A rating of cd indicates relatively loosely wound arms.
Astrophoto exposure time: about 90 minutes.
AstroLLM generated caption below.
AstroLLM Assistant generated:
"Distance from Earth in light-years": 25,200,000,
"Size or Diameter in light-years": 87,300,
"Constellation": "Cepheus and Cygnus",
"NGC number": "NGC6946",
"Messier number": "None",
"Galaxy type": "Intermediate spiral galaxy",
"Description of Galaxy type": "Fireworks Galaxy is an intermediate spiral galaxy, which means it is a type of galaxy that is neither a pure spiral nor a pure elliptical galaxy. It has a mix of features from both types, such as a central bulge and spiral arms. The name 'Fireworks Galaxy' is due to the high rate of supernovae explosions that occur in this galaxy, which creates a 'fireworks-like' display of light and energy."
Astrophoto exposure time: about 65 minutes.
AstroLLM generated caption below.
AstroLLM Assistant generated:
"Distance from Earth in light-years": 31,000,000,
"Size or Diameter in light-years": 76,900,
"Constellation": "Canes Venatici",
"NGC number": "NGC5194",
"Messier number": "M51",
"Galaxy type": "Spiral Galaxy",
"Interacting Galaxy": "NGC 5195"
Note: The Whirlpool Galaxy is a grand-design spiral galaxy because of its prominent and well-defined spiral arms. The galaxy type is called "grand-design" because of its grand and sweeping spiral arms that are easily visible. The interacting galaxy is NGC 5195, which is a small, yellowish galaxy that is passing behind the Whirlpool Galaxy. The interaction process is believed to have caused the Whirlpool Galaxy's spiral arms to form and maintain their structure.
Author: MZH © A personal hobby project
Title Image: Dumbbell Nebula snapped by MZH