The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations ("kinks" or sharp turns) in specific regions. Comparing the two arms shows a small radial offset between the main kinked regions. We analyzed the morphology and also the

We present the detection of three exoplanets orbiting the early M dwarf TOI-663 (TIC 54962195; V = 13.7 mag, J = 10.4 mag, R ★ = 0.512 ± 0.015 R ⊙, M ★ = 0.514 ± 0.012 M ⊙, d = 64 pc). TOI-663 b, c, and d, with respective radii of 2.27 ± 0.10 R ⊕, 2.26 ± 0.10 R ⊕, and 1.92 ± 0.13 R ⊕ and masses of 4.45 ± 0.65 M ⊕, 3.65 ± 0.97 M ⊕, and <5.2 M ⊕ at

In recent years, about 150 low-mass white dwarfs (WDs), typically with masses below 0.4 M ⊙, have been discovered. The majority of these low-mass WDs are observed in binary systems as they cannot be formed through single-star evolution within Hubble time. In this work, we present a comprehensive analysis of the double low-mass WD eclipsing binary