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B I A Stargazing Insights
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  1. Sophrosyne

    B Spectroscopy of stars

    May 29, 2018
    4
    1,286
    Replies: 4
    0
  2. Phys12

    I How is color added to Hubble images?

    May 28, 2018
    7
    1,150
    Replies: 7
    4
  3. fizzy

    I 2012 VP113 perihelion

    May 27, 2018
    2
    915
    Replies: 2
    0
  4. Ashraf Siddiqui

    B Solar Eclipse by a Black Hole

    ... 2
    May 25, 2018
    34
    2,949
    Replies: 34
    12
  5. swampwiz

    I Did astronomers just lengthen the expected life of the Sun by 5 Gy?

    May 25, 2018
    5
    1,364
    Replies: 5
    2
  6. quasarLie

    A Proper motion of a Quasar?

    ... 2
    May 24, 2018
    22
    1,653
    Replies: 22
    4
  7. krs1

    I Perceived Speed of Objects in Space

    May 22, 2018
    5
    780
    Replies: 5
    0
  8. sophiecentaur

    Stargazing NEQ6 Pro Mount Home Position

    May 21, 2018
    4
    546
    Replies: 4
    0
  9. nikkkom

    I News on V774104?

    May 21, 2018
    8
    2,285
    Replies: 8
    3
  10. nmsurobert

    I Andromeda and the cosmological redshift

    ... 2
    May 21, 2018
    28
    2,523
    Replies: 28
    7
  11. Morlaf

    Stargazing Why is Oxygen so abundant?

    ... 2
    May 20, 2018
    21
    1,474
    Replies: 21
    4
  12. bbbl67

    I Relationship between stellar mass and core mass?

    May 17, 2018
    7
    933
    Replies: 7
    0
  13. windy miller

    I Frequency of nearby Supernova Explosions

    May 17, 2018
    13
    821
    Replies: 13
    1
  14. johnbbahm

    I Atmospheric CO2 and diurnal Asymmetry

    May 17, 2018
    10
    589
    Replies: 10
    2
  15. Thecla

    B Milky Way Galaxy in 1900

    May 15, 2018
    8
    864
    Replies: 8
    6
  16. Catreece

    I On gravity and the conservation of energy

    ... 2
    May 15, 2018
    30
    1,809
    Replies: 30
    4
  17. Doc Al

    Stargazing Zeiss Terra ED 10x42 Binos for stargazing?

    May 13, 2018
    8
    1,309
    Replies: 8
    6
  18. Fabioonier

    A What are the typical uncertainties of data in Astophysics?

    May 11, 2018
    7
    1,211
    Replies: 7
    0
  19. Lane Dillon

    I Computational Hohmann Transfer on MapleSoft

    May 10, 2018
    1
    1,207
    Replies: 1
    0
  20. Android17

    B Is the solar system formed from the leftovers of a supermassive star that exploded?

    May 9, 2018
    13
    1,444
    Replies: 13
    5
  21. Ranku

    I Gravitational difference between a black hole and a star

    ... 2
    May 9, 2018
    30
    2,336
    Replies: 30
    2
  22. A Alex P

    I Stars, Planets and Satellites

    May 9, 2018
    10
    1,029
    Replies: 10
    2
  23. Buzz Bloom
    Featured

    I Is there a plan for a search for nearby black holes?

    ... 2 3
    May 7, 2018
    55
    3,990
    Replies: 55
    15
  24. davenn

    Stargazing Aurora Alert

    ... 2
    May 5, 2018
    21
    1,488
    Replies: 21
    23
  25. fizzy

    I Planetary angular momentum

    ... 2
    May 5, 2018
    24
    894
    Replies: 24
    5
  26. A Alex P

    B Measurements in astronomy

    May 3, 2018
    5
    499
    Replies: 5
    2
  27. Craftek_Ana

    B Traveling to Mars and time dilation

    May 3, 2018
    4
    916
    Replies: 4
    1
  28. arupel

    I Colonies on Mars -- fundamental problem

    ... 2 3
    May 2, 2018
    47
    2,509
    Replies: 47
    33
  29. Azurite

    I Origin of the Moon

    ... 2
    May 1, 2018
    20
    941
    Replies: 20
    8
  30. quasarLie

    I Relation between the Point Spread Function (PSF) and the Morphological Index

    May 1, 2018
    1
    418
    Replies: 1
    0
  31. A Alex P

    A Difference between eclipsing binaries and exoplanets

    ... 2
    May 1, 2018
    24
    848
    Replies: 24
    6
  32. ANAMUL

    B Midnight Sun in the Arctic

    Apr 30, 2018
    5
    928
    Replies: 5
    1
  33. trouble

    I Dark matter and old shell theorem

    Apr 30, 2018
    4
    443
    Replies: 4
    1
  34. icecats

    I Data Model of Kepler's Second Law of Planetary Motion

    Apr 30, 2018
    1
    344
    Replies: 1
    0
  35. Clear Mind

    I Radio telescope aberration

    Apr 30, 2018
    9
    531
    Replies: 9
    1
  36. Jenab2

    I The Trouble with TESS

    Apr 28, 2018
    2
    553
    Replies: 2
    2
  37. phyzguy
    Featured

    A Neutron star collisions as a heavy element source

    ... 2
    Apr 27, 2018
    34
    3,034
    Replies: 34
    12
  38. Rifat amin

    Planets sharing an orbit

    ... 2
    Apr 27, 2018
    26
    1,313
    Replies: 26
    4
  39. rootone

    I Can black dwarfs exist in the present Universe

    Apr 27, 2018
    12
    999
    Replies: 12
    2
  40. Simon Peach

    B Are circular orbits normal

    ... 2
    Apr 26, 2018
    22
    1,038
    Replies: 22
    6
  41. BWV

    I How does the distribution of elements change over time?

    Apr 26, 2018
    3
    417
    Replies: 3
    1
  42. swampwiz

    I Will white dwarfs cool down to blue, then yellow, then red?

    Apr 26, 2018
    9
    539
    Replies: 9
    1
  43. nmsurobert

    I Image of 1.7 billion stars

    Apr 26, 2018
    4
    480
    Replies: 4
    1
  44. DudeWut

    B External energy source?

    Apr 26, 2018
    8
    486
    Replies: 8
    0
  45. Ranku

    I N-body simulations

    Apr 26, 2018
    3
    746
    Replies: 3
    1
  46. Maha odeh

    A This is the most active place in the universe

    Apr 26, 2018
    2
    321
    Replies: 2
    1
  47. quasarLie

    A Quasar's spectra (DR13)

    Apr 26, 2018
    12
    918
    Replies: 12
    0
  48. Evo

    Massive Football Field-Sized Asteroid Comes Close to Earth

    ... 2
    Apr 25, 2018
    27
    1,585
    Replies: 27
    19
  49. BL4CKB0X97

    B Number of stars in the universe over time

    Apr 25, 2018
    2
    288
    Replies: 2
    2
  50. Zarhult

    Stargazing Movement of Stars seen from the North Pole

    Apr 23, 2018
    16
    1,563
    Replies: 16
    7
  51. mjda

    I Energy Transport in Stars

    Apr 23, 2018
    2
    401
    Replies: 2
    0
  52. jones123

    I Calculating the incidence angle of the Sun

    Apr 23, 2018
    1
    504
    Replies: 1
    0
  53. mjda

    I Stellar Thermal Energy with no Nuclear source

    Apr 22, 2018
    13
    1,063
    Replies: 13
    3
  54. Treva31

    B Orbit circularisation/insertion spreadsheet

    Apr 20, 2018
    15
    450
    Replies: 15
    10
  55. DaveC426913

    B Asteroid Belt not so circular?

    Apr 20, 2018
    2
    389
    Replies: 2
    1
  56. ryan liberty

    I Source of the weather on Neptune

    Apr 19, 2018
    2
    673
    Replies: 2
    0
  57. simon willetts

    B What path does the Earth take

    Apr 18, 2018
    12
    1,294
    Replies: 12
    7
  58. Alex Petrosyan

    I Origin of the half factor in Euler-Lagrange for geodesics

    Apr 18, 2018
    2
    352
    Replies: 2
    1
  59. infinitebubble
    Featured

    I Dark Matter and who will discover it first?

    ... 2
    Apr 18, 2018
    25
    3,445
    Replies: 25
    8
  60. mjda

    I How to describe the Sun's interior?

    ... 2 3
    Apr 17, 2018
    43
    1,468
    Replies: 43
    18
  61. Lukeblackhill

    B "The Galaxy" vs Milky Way

    ... 2
    Apr 15, 2018
    25
    1,506
    Replies: 25
    24
  62. Laurie K

    B Basic rule for Atmospheric Reentry of Glider Class vehicles

    Apr 15, 2018
    12
    1,061
    Replies: 12
    5
  63. Ranku

    B Density of matter at a galactic center

    Apr 15, 2018
    6
    657
    Replies: 6
    0
  64. negativzero

    I Expanding math space implies expanding space?

    Apr 15, 2018
    4
    690
    Replies: 4
    2
  65. sophiecentaur

    B Using Venus in the Parker Solar Probe mission

    Apr 13, 2018
    5
    612
    Replies: 5
    1
  66. nmsurobert

    I Milky way arms and the position of the Earth

    Apr 12, 2018
    2
    619
    Replies: 2
    1
  67. Guilherme Franco

    A Where can I find a text about heavy elements migration?

    Apr 12, 2018
    3
    638
    Replies: 3
    1
  68. lekh2003
    Featured

    Super Blue Blood Moon

    ... 2 3
    Apr 11, 2018
    45
    3,091
    Replies: 45
    50
  69. Ken G

    I The Explanation for the Mass-Luminosity Relation

    Apr 11, 2018
    10
    883
    Replies: 10
    3
  70. marksyncm

    I Relationship between star radius and luminosity

    Apr 10, 2018
    5
    776
    Replies: 5
    1
  71. AdrianGriff

    I Questions About Acceleration and Jerk in Orbits

    Apr 8, 2018
    6
    474
    Replies: 6
    1
  72. Harsha Avinash Tanti

    I The Role of magnetic field during the formation of small to medium scale stars

    Apr 8, 2018
    17
    1,205
    Replies: 17
    6
  73. Mohammed_I

    I How do we measure the velocity of stars in a galaxy?

    Apr 8, 2018
    4
    465
    Replies: 4
    1
  74. sophiecentaur

    B North and South poles of Mars are at different temperatures?

    Apr 7, 2018
    13
    818
    Replies: 13
    2
  75. Leonardo Machado

    I Standard Solar Model

    Apr 7, 2018
    4
    464
    Replies: 4
    0
  76. NebulaBilly

    I Diameter of a galaxy

    Apr 6, 2018
    9
    634
    Replies: 9
    0
  77. Greg Bernhardt

    B HiRISE images show strange-looking Mars formations

    Apr 6, 2018
    2
    403
    Replies: 2
    2
  78. Physics345

    B Moon: Apollo 15 Flag Waving

    ... 2
    Apr 2, 2018
    31
    1,678
    Replies: 31
    21
  79. darkmattermonkey

    I Star formation and heavy elements

    Apr 2, 2018
    19
    1,510
    Replies: 19
    12
  80. wolram

    B Chinese not sure where space station will land

    ... 2 3
    Apr 2, 2018
    46
    3,061
    Replies: 46
    22
  81. GTOM

    B Survival on Mars?

    ... 13 14 15
    Apr 1, 2018
    297
    25,116
    Replies: 297
    56
  82. craigi

    A KIC 8462852 (dipping again in March 2018)

    ... 13 14 15
    Mar 30, 2018
    296
    34,549
    Replies: 296
    68
  83. GravityBound

    A On the Pioneer Anomaly onset

    Mar 29, 2018
    5
    852
    Replies: 5
    0
  84. cosmo777

    B Interplanetary travel, Arctic sea ice

    ... 3 4 5
    Mar 28, 2018
    85
    3,043
    Replies: 85
    29
  85. CWatters

    I Net charge on the Earth?

    ... 2 3
    Mar 27, 2018
    42
    2,077
    Replies: 42
    11
  86. quasarLie

    B Sloan digital sky survey

    Mar 27, 2018
    13
    753
    Replies: 13
    4
  87. Phys12

    I Minimizing diffraction in images using a photodetector

    Mar 25, 2018
    1
    409
    Replies: 1
    0
  88. Ziang

    B Supernova DES16C2nm

    ... 2
    Mar 22, 2018
    24
    1,140
    Replies: 24
    1
  89. jim mcnamara

    B Sholz's star entered the Oort cloud ~70kya

    Mar 21, 2018
    1
    573
    Replies: 1
    0
  90. Aleolomorfo

    I Eddington limit

    Mar 21, 2018
    3
    654
    Replies: 3
    2
  91. NebulaBilly

    I Recession speed of a galaxy

    Mar 18, 2018
    7
    591
    Replies: 7
    2
  92. jedishrfu

    B Physicist who Questioned Black Holes

    Mar 17, 2018
    4
    775
    Replies: 4
    1
  93. Buzz Bloom

    I Qs re aspects of the Holmdel Horn Antenna used to find the CMB

    ... 2 3 4
    Mar 16, 2018
    69
    2,186
    Replies: 69
    14
  94. fresh_42

    B 3rd cosmic velocity

    Mar 15, 2018
    2
    550
    Replies: 2
    7
  95. swampwiz

    B Does a partial solar eclipse never completely rise?

    Mar 14, 2018
    18
    604
    Replies: 18
    6
  96. snorkack

    I Binary pulsar tidal locking

    Mar 14, 2018
    10
    899
    Replies: 10
    1
  97. unusually_wrong

    B RIP Stephen Hawking =(

    Mar 14, 2018
    1
    366
    Replies: 1
    0
  98. Space_Girl

    B Life Outside Our Planet Without Oxygen and Water

    ... 2
    Mar 13, 2018
    30
    1,594
    Replies: 30
    12
  99. BlackholeGirl

    I [Question] Tell me the latest catching news about black holes

    Mar 13, 2018
    6
    710
    Replies: 6
    1
  100. windy miller

    I Would you see stars on the early Earth?

    Mar 12, 2018
    8
    646
    Replies: 8
    2
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