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    Re: Star - Star Observations
    From: Brad Morris
    Date: 2010 Mar 11, 09:49 -0500

    The Skyscout did indicate Alphard and Sirius as the objects.  Further, the sextant was
    horizontal.
    
    Brad
    
    -----Original Message-----
    From: navlist-bounce@fer3.com [mailto:navlist-bounce@fer3.com] On Behalf Of George Huxtable
    Sent: Thursday, March 11, 2010 9:46 AM
    To: NavList@fer3.com
    Subject: [NavList] Re: Star - Star Observations
    
    Well, Brad, what stars did your Skyscout tell you it was looking at, then?
    And how come it provided you with two altitudes that differed by 9� , when
    at that time Alphard and Sirius had the same altitude within a few
    arc-minutes? Was it Alphard and Sirius that you were observing, when
    measuring distance between two stars? If they were, your sextant would have
    been exactly horizontal. Was it?
    
    Soime puzzles there...
    
    George
    
    contact George Huxtable, at  george@hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    ----- Original Message -----
    From: "Brad Morris" 
    To: 
    Sent: Thursday, March 11, 2010 2:30 PM
    Subject: [NavList] Re: Star - Star Observations
    
    
    Hi Andres
    
    Yes, Alphard and Sirius. I found the same thing to my utter dismay last
    night.  It is apparent that the Skyscout does not
    provide right ascension to the degree of accuracy required of this problem.
    This, of course, will drive me right back
    into the Nautical Almanac for the day.
    
    Pity.
    
    Best Regards
    Brad
    
    
    From: navlist-bounce@fer3.com [mailto:navlist-bounce@fer3.com] On
    Behalf Of Andres Ruiz
    Sent: Thursday, March 11, 2010 8:08 AM
    To: NavList@fer3.com
    Subject: [NavList] Re: Star - Star Observations
    
    Brad,
    
    Your Skyscout gives the data with some error???
    Trying to identify the stars, it seems they are Alphard and Sirius
    
    [10/03/2010 00:57:00]
    Lat, Lon = 40.883, -72.800
    
    Body
    
    GHA
    
    Dec
    
    Zn
    
    Hc
    
    RA
    
    Aries
    
    181� 51.3'
    
    
    
    
    
    
    
    
    
    Sol
    
    191� 39.0'
    
     -4� 13.1'
    
    286.5
    
    -24� 19.7'
    
    
    
    Luna
    
    254� 37.7'
    
    -22� 48.8'
    
    5.4
    
    -71� 51.8'
    
    
    
    Venus
    
    178� 29.9'
    
      0�  7.7'
    
    280.5
    
    -11� 43.1'
    
    
    
    Mars
    
     58� 30.7'
    
     23� 39.4'
    
    140.8
    
     69�  1.3'
    
    
    
    Jupiter
    
    198�  2.8'
    
     -7� 54.8'
    
    288.5
    
    -31� 29.0'
    
    
    
    Saturn
    
    358� 48.3'
    
      1� 27.6'
    
    99.5
    
     13�  0.4'
    
    
    
    Acamar
    
    137� 11.6'
    
    -40� 16.0'
    
    224.3
    
    -10�  0.2'
    
    
    
    Achernar
    
    157� 20.1'
    
    -57� 11.2'
    
    218.9
    
    -30� 44.1'
    
    
    
    Acrux
    
    355�  2.9'
    
    -63�  9.4'
    
    149.1
    
    -30� 46.1'
    
    
    
    Adhara
    
     77�  5.5'
    
    -28� 59.4'
    
    184
    
     20�  0.8'
    
    
    
    Al_Na'ir
    
    209� 38.3'
    
    -46� 54.6'
    
    244.2
    
    -58� 43.8'
    
    
    
    Aldebaran
    
    112� 43.5'
    
     16� 31.8'
    
    246.6
    
     47� 54.4'
    
    
    
    Alioth
    
    348� 13.4'
    
     55� 54.0'
    
    43.3
    
     35� 35.6'
    
    
    
    Alkaid
    
    334� 51.6'
    
     49� 15.4'
    
    45.7
    
     25� 19.4'
    
    
    
    Alnilam
    
     97� 40.0'
    
     -1� 11.8'
    
    214.6
    
     42� 13.9'
    
    
    
    Alphard
    
     39� 49.4'
    
     -8� 42.4'
    
    140.7
    
     31� 51.6'
    
    9:28:07
    
    Alphecca
    
    308�  4.1'
    
     26� 40.5'
    
    47.5
    
     -5� 13.5'
    
    
    
    Alpheratz
    
    179� 37.7'
    
     29�  8.8'
    
    302.6
    
      7� 20.0'
    
    
    
    Altair
    
    244�  2.1'
    
      8� 53.6'
    
    348.7
    
    -39� 34.3'
    
    
    
    Ankaa
    
    175�  9.6'
    
    -42� 15.1'
    
    240.8
    
    -34�  2.9'
    
    
    
    Antares
    
    294� 20.4'
    
    -26� 27.3'
    
    80.3
    
    -52� 57.6'
    
    
    
    Arcturus
    
    327� 48.9'
    
     19�  7.5'
    
    65.9
    
      1� 42.3'
    
    
    
    Atria
    
    289� 24.5'
    
    -69�  2.5'
    
    157.6
    
    -55� 55.5'
    
    
    
    Avior
    
     56� 10.0'
    
    -59� 32.8'
    
    171.5
    
    -11� 22.0'
    
    
    
    Bellatrix
    
    100� 25.8'
    
      6� 21.5'
    
    223.1
    
     47� 34.6'
    
    
    
    Betelgeuse
    
     92� 55.1'
    
      7� 24.5'
    
    213.7
    
     52�  2.0'
    
    
    
    Canopus
    
     85� 48.4'
    
    -52� 42.4'
    
    187.9
    
     -4� 15.9'
    
    
    
    Capella
    
    102� 29.3'
    
     46�  0.7'
    
    293.4
    
     67� 59.0'
    
    
    
    Deneb
    
    231� 24.8'
    
     45� 18.8'
    
    345.1
    
     -1� 42.2'
    
    
    
    Denebola
    
      4� 27.0'
    
     14� 30.7'
    
    92.8
    
     25� 43.4'
    
    
    
    Diphda
    
    170� 49.8'
    
    -17� 55.9'
    
    261.2
    
    -17� 34.7'
    
    
    
    Dubhe
    
     15� 45.0'
    
     61� 41.6'
    
    38.7
    
     50� 28.0'
    
    
    
    Elnath
    
    100�  6.9'
    
     28� 37.0'
    
    249.8
    
     64� 34.6'
    
    
    
    Eltanin
    
    272� 38.6'
    
     51� 28.9'
    
    12.2
    
      3� 58.2'
    
    
    
    Enif
    
    215� 41.1'
    
      9� 55.2'
    
    317.3
    
    -28� 45.5'
    
    
    
    Fomalhaut
    
    197� 18.2'
    
    -29� 34.1'
    
    266
    
    -44�  3.9'
    
    
    
    Gacrux
    
    353� 54.5'
    
    -57� 10.3'
    
    142.9
    
    -28�  6.1'
    
    
    
    Gienah
    
    357� 45.8'
    
    -17� 36.1'
    
    112.9
    
    -0� 40.8'
    
    
    
    Hadar
    
    330� 42.3'
    
    -60� 25.3'
    
    140.7
    
    -40� 20.8'
    
    
    
    Hamal
    
    149� 55.0'
    
     23� 30.7'
    
    280.6
    
     24� 33.7'
    
    
    
    Kaus_Australis
    
    265� 38.4'
    
    -34� 22.7'
    
    61.5
    
    -77� 56.9'
    
    
    
    Kochab
    
    319� 10.2'
    
     74�  6.4'
    
    17.4
    
     33�  7.7'
    
    
    
    Markab
    
    195� 32.4'
    
     15� 15.6'
    
    303.7
    
    -12� 50.3'
    
    
    
    Menkar
    
    136�  9.0'
    
      4�  7.8'
    
    255
    
     22� 40.0'
    
    
    
    Menkent
    
    330�  1.5'
    
    -36� 25.3'
    
    113
    
    -31� 32.6'
    
    
    
    Miaplacidus
    
     43� 30.9'
    
    -69� 45.8'
    
    169.4
    
    -22� 42.4'
    
    
    
    Mirfak
    
    130� 35.4'
    
     49� 54.0'
    
    303
    
     49� 29.1'
    
    
    
    Nunki
    
    257� 52.7'
    
    -26� 17.0'
    
    17.6
    
    -74� 48.4'
    
    
    
    Peacock
    
    235� 14.6'
    
    -56� 42.0'
    
    209.8
    
    -70� 31.7'
    
    
    
    Polaris
    
    141�  4.9'
    
     89� 18.8'
    
    359.2
    
     41�  8.0'
    
    
    
    Pollux
    
     65� 21.7'
    
     28�  0.0'
    
    152.3
    
     75� 44.7'
    
    
    
    Procyon
    
     66� 53.3'
    
      5� 11.8'
    
    170
    
     53� 55.3'
    
    
    
    Rasalhague
    
    277� 60.0'
    
     12� 32.9'
    
    29.2
    
    -31� 42.3'
    
    
    
    Regulus
    
     29� 37.0'
    
     11� 54.8'
    
    114.9
    
     42� 25.1'
    
    
    
    Rigel
    
    103�  5.6'
    
     -8� 11.5'
    
    216.8
    
     33� 33.9'
    
    5:15:03
    
    Rigil_Kentaurus
    
    321� 46.1'
    
    -60� 52.6'
    
    140.2
    
    -44� 44.1'
    
    
    
    Sabik
    
    284�  6.6'
    
    -15� 44.3'
    
    56.3
    
    -53�  3.6'
    
    
    
    Schedar
    
    171� 35.3'
    
     56� 35.7'
    
    321.6
    
     28� 52.1'
    
    
    
    Shaula
    
    278� 16.5'
    
    -37�  6.6'
    
    87.5
    
    -69� 55.2'
    
    
    
    Sirius
    
     80� 27.0'
    
    -16� 44.0'
    
    188.6
    
     31� 56.8'
    
    6:45:37
    
    Spica
    
    340� 24.8'
    
    -11� 13.1'
    
    97
    
     -9�  6.2'
    
    
    
    Suhail
    
     44� 45.2'
    
    -43� 28.7'
    
    160
    
      1� 56.3'
    
    
    
    Vega
    
    262� 32.0'
    
     38� 47.3'
    
    7.7
    
     -9� 50.1'
    
    
    
    Zubenelgenubi
    
    318� 59.2'
    
    -16�  5.2'
    
    87.1
    
    -28� 20.3'
    
    14:51:28
    
    
    
    [cid:image001.jpg@01CAC0FD.732C4360]
    
    ---
    Andr�s Ruiz
    Navigational Algorithms
    https://sites.google.com/site/navigationalalgorithms/
    
    
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