Circular No. 5834

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION

Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.

Telephone 617-495-7244/7440/7444 (for emergency use only) TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505

MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)

1993 MF

Orbital elements from MPC 22385:

T = 1993 Aug. 1.255 TT  ω = 74.^{o}525
e = 0.54359  Ω = 241.396 }2000.0
q = 1.14721 AU  i = 8.156

a = 2.51354 AU n^{o} = 0.247329 P = 3.99 years

1993 TT α_{2000} δ_{2000} Δ r ϵ β V
July 22 21^{h}56.^{m}29 +31^{o}01.^{′}5 0.228 1.154 122.^{o}2 48.^{o}2 13.4
24 22 04.06 +32 27.7 0.228 1.151 121.4 48.9 13.4
26 22 11.82 +33 47.3 0.229 1.150 120.6 49.5 13.5
28 22 19.55 +35 00.5 0.231 1.148 120.0 50.0 13.5
30 22 27.22 +36 06.9 0.232 1.148 119.5 50.4 13.5
Aug. 1 22 34.80 +37 06.7 0.234 1.147 119.1 50.6 13.5
6 22 53.13 +39 07.6 0.240 1.149 118.6 50.8 13.6
11 23 10.21 +40 29.3 0.246 1.153 119.0 50.3 13.6
16 23 25.64 +41 14.3 0.253 1.160 120.0 49.1 13.7
21 23 39.15 +41 25.8 0.261 1.171 121.8 47.2 13.7
26 23 50.66 +41 06.9 0.270 1.184 124.3 44.9 13.7
31 0 00.18 +40 21.2 0.279 1.199 127.4 42.0 13.8
Sept. 5 0 07.80 +39 11.5 0.289 1.217 131.0 38.7 13.8
10 0 13.67 +37 40.7 0.300 1.238 135.1 35.0 13.8
15 0 18.04 +35 51.7 0.313 1.260 139.6 31.2 13.8
20 0 21.23 +33 47.8 0.328 1.285 144.3 27.2 13.8
25 0 23.60 +31 33.6 0.345 1.311 149.0 23.2 13.9
30 0 25.43 +29 13.7 0.365 1.338 153.5 19.5 13.9
Oct. 5 0 27.00 +26 52.7 0.389 1.367 157.5 16.3 14.0
10 0 28.50 +24 34.8 0.416 1.397 160.3 13.9 14.1
15 0 30.12 +22 23.7 0.447 1.428 161.6 12.8 14.3
20 0 32.01 +20 22.5 0.482 1.460 161.0 12.8 14.5

VZ SAGITTARII

J. Mattei, AAVSO, reports that this R CrB-type variable star has started to fade, as indicated by the following visual observations: July 12.2 UT, 11.0 (J. Bortle, Stormville, NY); 15.7, 11.2 (D. Overbeek, Edenvale, South Africa); 16.76, 11.7 (Overbeek); 21.15, 12.4 (Bortle).

1993 July 26 Daniel W. E. Green