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Re: Star - Star Observations
From: Brad Morris
Date: 2010 Mar 11, 09:49 -0500
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/ ________________________________ "Confidentiality and Privilege Notice The information transmitted by this electronic mail (and any attachments) is being sent by or on behalf of Tactronics; it is intended for the exclusive use of the addressee named above and may constitute information that is privileged or confidential or otherwise legally exempt from disclosure. 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