Dick
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10/26/2017 6:42 AM
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In my recollection, the dimmest we have ever done astrometry was 19th mag.
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Willie
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10/25/2017 9:44 PM
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I quoted incorrectly, it is 21.3, but that is still too dim for us IMO.
Willie
> On Oct 25, 2017, at 7:27 PM, Science Imaging <science-imaging@centexastronomy.org> wrote:
>
>
>
>
> Based on Willies message it is 21.5 Mag so that means it will be marginal.
>
> Aubrey
>
> -----Original Message-----
> From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Science Imaging
> Sent: Wednesday, October 25, 2017 2:39 PM
> To: abrickhouse1@att.net
> Subject: New comet PANSTARS C/2017 U1 possibly interstellar
>
>
>
>
> MPEC has put out a request for astrometry on comet PANSTARS C/2017 U1 to better resolve its orbit. Based on the few dozen observations so far, there is a strong chance we may be seeing the first recorded interstellar object to enter the solar system. Ephemeris is below:
>
> Ephemeris:
> C/2017 U1 (PANSTARRS)
> Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
> 2017 09 25 09 48 43.3 -06 12 59 0.6925 0.5884 34.9 102.8 20.5
> ....
> 2017 10 10 07 36 11.4 -05 42 56 0.2294 0.9879 80.7 86.0 18.8
> ....
> 2017 10 18 02 14 50.4 +01 42 29 0.1968 1.1887 166.6 11.2 18.7
> ....
> 2017 10 24 00 22 33.4 +04 27 26 0.3622 1.3344 156.3 17.4 20.2
> 2017 10 25 00 13 40.3 +04 38 57 0.3943 1.3583 153.3 19.2 20.4
> 2017 10 26 00 06 10.5 +04 48 35 0.4270 1.3821 150.6 20.7 20.6
> ....
> 2017 11 01 23 38 46.8 +05 25 33 0.6318 1.5233 138.3 25.7 21.6
> ....
> 2017 11 09 23 23 45.8 +05 54 48 0.9168 1.7069 127.0 27.6 22.5
> ....
> 2017 11 24 23 16 52.8 +06 41 38 1.4693 2.0399 110.7 26.9 23.8
>
> Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-U181
>
>
>
>
>
>>> --------------------------------------------------------------------------------------<<
> You have received this message as a member of: Central Texas Astronomical Society
> Change preferences (including opt-out): https://CTAS.clubexpress.com/content.aspx?page_id=13&club_id=901132
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>
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abrickhouse
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10/25/2017 7:19 PM
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Based on Willies message it is 21.5 Mag so that means it will be marginal.
Aubrey
-----Original Message-----
From: mailer@mail2.clubexpress.com [mailto:mailer@mail2.clubexpress.com] On Behalf Of Science Imaging
Sent: Wednesday, October 25, 2017 2:39 PM
To: abrickhouse1@att.net
Subject: New comet PANSTARS C/2017 U1 possibly interstellar
MPEC has put out a request for astrometry on comet PANSTARS C/2017 U1 to better resolve its orbit. Based on the few dozen observations so far, there is a strong chance we may be seeing the first recorded interstellar object to enter the solar system. Ephemeris is below:
Ephemeris:
C/2017 U1 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2017 09 25 09 48 43.3 -06 12 59 0.6925 0.5884 34.9 102.8 20.5
....
2017 10 10 07 36 11.4 -05 42 56 0.2294 0.9879 80.7 86.0 18.8
....
2017 10 18 02 14 50.4 +01 42 29 0.1968 1.1887 166.6 11.2 18.7
....
2017 10 24 00 22 33.4 +04 27 26 0.3622 1.3344 156.3 17.4 20.2
2017 10 25 00 13 40.3 +04 38 57 0.3943 1.3583 153.3 19.2 20.4
2017 10 26 00 06 10.5 +04 48 35 0.4270 1.3821 150.6 20.7 20.6
....
2017 11 01 23 38 46.8 +05 25 33 0.6318 1.5233 138.3 25.7 21.6
....
2017 11 09 23 23 45.8 +05 54 48 0.9168 1.7069 127.0 27.6 22.5
....
2017 11 24 23 16 52.8 +06 41 38 1.4693 2.0399 110.7 26.9 23.8
Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-U181
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Willie
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10/25/2017 3:28 PM
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According to
It is estimated at 21.5 mag Willie MPEC has put out a request for astrometry on comet PANSTARS C/2017 U1 to better resolve its orbit. Based on the few dozen observations so far, there is a strong chance we may be seeing the first recorded interstellar object to enter the solar system. Ephemeris is below:Ephemeris: C/2017 U1 (PANSTARRS)Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m22017 09 25 09 48 43.3 -06 12 59 0.6925 0.5884 34.9 102.8 20.5...2017 10 10 07 36 11.4 -05 42 56 0.2294 0.9879 80.7 86.0 18.8...2017 10 18 02 14 50.4 +01 42 29 0.1968 1.1887 166.6 11.2 18.7...2017 10 24 00 22 33.4 +04 27 26 0.3622 1.3344 156.3 17.4 20.22017 10 25 00 13 40.3 +04 38 57 0.3943 1.3583 153.3 19.2 20.42017 10 26 00 06 10.5 +04 48 35 0.4270 1.3821 150.6 20.7 20.6...2017 11 01 23 38 46.8 +05 25 33 0.6318 1.5233 138.3 25.7 21.6...2017 11 09 23 23 45.8 +05 54 48 0.9168 1.7069 127.0 27.6 22.5...2017 11 24 23 16 52.8 +06 41 38 1.4693 2.0399 110.7 26.9 23.8Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-U181--------------------------------------------------------------------------------------<<
You have received this message as a member of: Central Texas Astronomical SocietyChange preferences (including opt-out): https://CTAS.clubexpress.com/content.aspx?page_id=13&club_id=901132
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StarmanDan
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10/25/2017 2:30 PM
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MPEC has put out a request for astrometry on comet PANSTARS C/2017 U1 to better resolve its orbit. Based on the few dozen observations so far, there is a strong chance we may be seeing the first recorded interstellar object to enter the solar system. Ephemeris is below:
Ephemeris:
C/2017 U1 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2017 09 25 09 48 43.3 -06 12 59 0.6925 0.5884 34.9 102.8 20.5
...
2017 10 10 07 36 11.4 -05 42 56 0.2294 0.9879 80.7 86.0 18.8
...
2017 10 18 02 14 50.4 +01 42 29 0.1968 1.1887 166.6 11.2 18.7
...
2017 10 24 00 22 33.4 +04 27 26 0.3622 1.3344 156.3 17.4 20.2
2017 10 25 00 13 40.3 +04 38 57 0.3943 1.3583 153.3 19.2 20.4
2017 10 26 00 06 10.5 +04 48 35 0.4270 1.3821 150.6 20.7 20.6
...
2017 11 01 23 38 46.8 +05 25 33 0.6318 1.5233 138.3 25.7 21.6
...
2017 11 09 23 23 45.8 +05 54 48 0.9168 1.7069 127.0 27.6 22.5
...
2017 11 24 23 16 52.8 +06 41 38 1.4693 2.0399 110.7 26.9 23.8
Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-U181
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