Melati Rabia

8 Questions 16 Answers 0 Followers

Questions related from Melati Rabia

Are Galaxies Coplanar If They Share Declination or Right Ascension with Different Distances?

Hello, I am interested in understanding if three galaxies that have the same declination but different right ascensions, and differing distances from Earth, are considered coplanar. Additionally,...

12 August 2024 3,295 0 View

How to calculate the mass of an elliptical galaxy?

Hello, I would like to know how to calculate the mass of an elliptical galaxy. If someone could explain the commonly used methods and formulas, it would be greatly appreciated. Additionally, could...

03 June 2024 3,309 10 View

In regards to adding diodes at the input (or output) of choppers in series and parallel modular topologies?

Hello I would like to know : In the context of photovoltaic systems, if it is essential to integrate diodes into modular series and parallel chopper topologies? What is the significance of this...

12 May 2024 4,104 4 View

Rotation speeds of galaxies?

Hello, I would like to know the rotation speeds of the galaxies NGC 4984, NGC 4378, NGC 3145, NGC 1620, and NGC 7664. Can you provide me with information on the angular or linear rotation speeds...

28 May 2023 5,784 6 View

Galaxies movement velocity?

Hello, The NASA/IPAC Extragalactic Database gives two velocities for each galaxy: The velocity (helio) and velocity (CMB). I need just to know, if possible, the difference between these two...

05 September 2022 3,717 4 View

I would like to know if possible, the distance between some elliptical galaxies and the members of their groups ?

Question1 : I would like to know if possible the distance separating the elliptical galaxy M60 (NGC 4649) and some spiral galaxies belonging to its group such as: NGC 4019, NGC 4037, NGC 4049, NGC...

26 December 2021 6,040 4 View

Do spiral planar inductors tolerate higher current density than ordinary coils?

Dear Honorable Colleagues I need to know, if possible, the maximum current density that the conductor of a spiral planar inductor can withstand.

01 January 1970 4,359 0 View

Active galaxies are stars on an extragalactic scale and the supermassive black holes can be a stellar spots at the same extragalactic scale !!!

Dear Honorable Colleagues, I would like to initiate a discussion concerning the approach presenting active galaxies as stars at extra galactic scale. So, Quasar, Radio galaxy, Blasar and other AGN...

01 January 1970 6,447 2 View