Nicolas Biver's Novae and Supernovae Page

Last updated: 30.2 Jun.2003 UT

Observing variable stars is not my speciality, but some of these "new" stars are still worth having a look at them...

(Note: errorbars define the 95% confidence interval based on the dispersion of the various estimates (typically 5 to 15 measures))

NOVAE

Nova Aquila (AqlV1494) 1999 n°2

Another bright naked eye nova this year! Discovered by Alfredo Pereira 10° South-West of Altair. (IAUC7323)

Aquila and Nova V1494, 6.22 Dec. 99

1999 Dec 02.260: mv = 4.97+-0.08, 7x50 B, Anapuni St., Honolulu (HI)

1999 Dec 03.219: mv = 4.26+-0.17, 7x50 B, Ala Moana Pk, Honolulu (HI) (thik cirrus)

1999 Dec 05.254: mv = 4.86+-0.11, Naked Eye, Dillingham (HI), cirrus...

1999 Dec 05.269: mv = 5.02+-0.10, 7x50 B, Dillingham (HI), cirrus...

1999 Dec 06.205: mv = 5.72+-0.05, 7x50 B, Dillingham (HI)

1999 Dec 06.247: mv = 5.49+-0.07, Naked Eye, Dillingham (HI)

1999 Dec 08.198: mv = 5.72+-0.07, 7x50 B, IfA, Honolulu (HI)

1999 Dec 14.236: mv = 6.15+-0.07, 7x50 B, Dillingham (HI)

1999 Dec 17.215: mv = 6.59+-0.05, 7x50 B, IfA, Honolulu (HI)

1999 Dec 18.206: mv = 6.54+-0.05, 7x50 B, Anapuni St., Honolulu (HI)

1999 Dec 19.206: mv = 6.67+-0.10, 7x50 B, Kapiolani Pk., Honolulu (HI)

1999 Dec 31.20: mv > 6.3, 7x50 B, IfA, Honolulu (HI) - too low.

2000 Jan 01.21: mv > 6.2, 7x50 B, Hale-Pohaku (HI) - too low.

2000 Feb 10.663: mv = 8.71+-0.09, 42x256L, Anapuni St., Honolulu (HI)

2000 Feb 10.667: mv = 8.65+-0.04, 7x50 B, Anapuni St., Honolulu (HI)

2000 Feb 11.650: mv = 8.67+-0.06, 42x256L, Anapuni St., Honolulu (HI)

2000 Feb 12.667: mv = 8.61+-0.05, 42x256L, Dillingham (HI)

2000 Feb 15.650: mv = 8.67+-0.04, 7x50 B, Hale-Pohaku, Hawaii (HI)

2000 Feb 17.640: mv = 8.73+-0.04, 7x50 B, Mauna-Kea, Hawaii (HI)

2000 Mar.02.671: mv = 8.64+-0.05, 42x256L, Anapuni St., Honolulu (HI)

2000 Mar.03.613: mv = 8.78+-0.05, 42x256L, Anapuni St., Honolulu (HI)

2000 Mar.04.604: mv = 9.07+-0.08, 42x256L, Dillingham (HI)

2000 Mar.05.592: mv = 9.45+-0.06, 42x256L, Dillingham (HI)

2000 Mar.25.556: mv = 9.64+-0.08, 42x256L, Anapuni St., Honolulu (HI)

Nova Velorum (VelV382) 1999

A Bright nova was discovered in Vela on 22.4 May 1999 (IAUC7176)

it is 8 degrees north of Eta Carina, close to mu vela (mv=2.69)

Unfortunately, that night, I may have seen it but did not notice it..

1999 May 23.258: mv = 2.80+-0.05, Naked Eye, Mauna-Kea (HI)

1999 May 24.280: mv = 3.10+-0.11, Naked Eye, Mauna-Kea (HI)

1999 May 25.278: mv = 3.68+-0.06, Naked Eye, Mauna-Kea (HI)

1999 May 26.271: mv = 3.97+-0.08, Naked Eye, Mauna-Kea (HI)

1999 May 26.283: mv = 3.92+-0.09, 7x50 B, Mauna-Kea (HI)

1999 Jun 03.269: mv = 5.72+-0.08, Naked Eye, Hale-Pohaku (HI)

1999 Jun 03.274: mv = 5.58+-0.06, 7x50 B, Hale-Pohaku (HI)

1999 Jun 04.277: mv = 5.62+-0.06, 7x50 B, Mauna-Kea (HI)

1999 Jun 04.297: mv = 5.71+-0.13, Naked Eye, Mauna-Kea (HI)

1999 Jun 05.282: mv = 5.85+-0.07, 7x50 B, Mauna-Kea (HI)

1999 Jun 06.257: mv = 6.00+-0.07, 7x50 B, Mauna-Kea (HI)

1999 Jun 07.294: mv = 6.02+-0.07, 7x50 B, Mauna-Kea (HI)

1999 Jun 08.260: mv = 6.21+-0.04, 7x50 B, Mauna-Kea (HI)

1999 Jun 09.271: mv = 6.26+-0.07, 7x50 B, Mauna-Kea (HI)

1999 Jun 10.261: mv = 6.31+-0.07, 7x50 B, Mauna-Kea (HI)

1999 Jun 11.267: mv = 6.41+-0.06, 7x50 B, Mauna-Kea (HI)

1999 Jun 12.252: mv = 6.44+-0.08, 7x50 B, Dillingham (HI)

1999 Jun 15.260: mv = 6.68+-0.08, 7x50 B, IfA, Honolulu (HI)

1999 Jun 17.254: mv = 6.90+-0.12, 7x50 B, Dillingham (HI)

1999 Jun 23.256: mv = 7.12+-0.04, 7x50 B, Hale-Pohaku (HI)

1999 Jun 24.288: mv = 7.4:+-0.1 , 7x50 B, Mauna-Kea (HI)

1999 Jun 25.278: mv = 7.30+-0.06, 7x50 B, Mauna-Kea (HI)

1999 Jun 27.259: mv = 7.26+-0.06, 7x50 B, Mauna-Kea (HI)

1999 Jun 28.258: mv = 7.37+-0.08, 7x50 B, Mauna-Kea (HI)

2000 Jan 17.653: mv = 9.9+-0.2, 42x256L, Dilli. (HI)

2000 Jan 23.529: mv = 9.73+-0.06, 42x256L, Honolulu (HI)

2000 Jan 28.528: mv = 9.85+-0.06, 42x256L, Honolulu (HI)

2000 Jan 31.503: mv = 9.93+-0.06, 42x256L, Honolulu (HI)

2000 Feb 03.571: mv = 9.98+-0.04, 42x256L, Dilli. (HI)

2000 Feb 08.524: mv =10.04+-0.05, 42x256L, Dilli. (HI)

2000 Feb 27.376: mv =10.15+-0.04, 42x256L, Dilli. (HI)

2000 Mar 22.372: mv =10.54+-0.04, 42x256L, Honolulu (HI)

Eta Carina and Nova Vel V382, 07.26 June 99

SUPERNOVAE

2003:

Supernova 2003gd in M74

June 02.073: mv = 13.9 (+-0.2), 160x203ScT, PicoVeleta (E)

2002:

Supernova 2002ap in M74

Feb. 02.800: mv = 12.59 (+-0.05), 95x203 L, Noordwijk (NL)

Feb. 09.861: mv = 12.40 (+-0.06), 169x256 L, Versailles (Fr.)

Feb. 14.806: mv = 12.64 (+-0.08), 95x203 L, Noordwijk (NL)

Feb. 16.844: mv = 12.69 (+-0.07), 84x256 L, Ablis (Fr.)

Feb. 17.813: mv = 12.82 (+-0.09), 84x256 L, Poigny-la-F. (Fr.)

Supernova 2000E in NGC6951

2000:

Jan. 30.237: mv = 13.96 (+-0.15), 169x256 L, Dilli. (HI)

Feb. 01.265: mv = 13.97 (+-0.10), 169x256 L, Dilli. (HI)

Feb. 11.601: mv = 13.62 (+-0.08), 169x256 L, Dilli. (HI)

Feb. 12.643: mv = 13.73 (+-0.04), 169x256 L, Dilli. (HI)

Mar. 04.612: mv = 14.93 (+-0.11), 169x256 L, Dilli. (HI)

Mar. 05.599: mv = 15.10 (+-0.11), 169x256 L, Dilli. (HI)

Supernova 1999el in NGC6951

1999:

Oct. 28.29: mv = 14.94(+-0.11), 169x256 L, Dilli. (HI)

Nov. 02.32: mv = 14.94(+-0.08), 169x256 L, Dilli. (HI)

SN 1999el was embeded in nebulosities, so not so sure, but 2000E is clearly seen, although low in Jan. 2000.

1999:

Supernova 1999gi in NGC3184

Dec. 14.590: mv = 14.09 (+-0.08), 169x256 L, Dilli. (HI)

Dec. 16.588: mv = 14.50 (+-0.07), 169x256 L, Dilli. (HI)

Dec. 18.656: mv = 14.16 (+-0.11), 169x256 L, Dilli. (HI)

Dec. 30.380: mv = 14.58 (+-0.04), 169x256 L, Dilli. (HI)

2000:

Jan. 12.385: mv = 14.74 (+-0.07), 169x256 L, Dilli. (HI)

Jan. 16.588: mv = 14.93 (+-0.05), 169x256 L, Dilli. (HI)

Jan. 17.649: mv = 14.65 (+-0.08), 169x256 L, Dilli. (HI)

Jan. 25.311: mv = 15.04 (+-0.05), 169x256 L, Dilli. (HI)

Jan. 30.486: mv = 15.04 (+-0.04), 169x256 L, Dilli. (HI)

Supernova 1999em in NGC1637

Nov. 02.365: mv = 13.41 (+-0.09), 169x256 L, Dilli. (HI)

Nov. 08.337: mv = 13.47 (+-0.08), 169x256 L, Dilli. (HI)

Nov. 14.517: mv = 13.90 (+-0.10), 169x256 L, Dilli. (HI)

Nov. 15.413: mv = 13.95 (+-0.09), 169x256 L, Dilli. (HI)

Nov. 16.500: mv = 13.91 (+-0.07), 169x256 L, Dilli. (HI)

Nov. 27.331: mv = 14.01 (+-0.06), 169x256 L, Dilli. (HI)

Nov. 28.349: mv = 13.98 (+-0.09), 169x256 L, Dilli. (HI)

Dec. 01.310: mv = 14.14 (+-0.07), 169x256 L, Dilli. (HI)

Dec. 05.542: mv = 14.05 (+-0.08), 169x256 L, Dilli. (HI)

Dec. 06.353: mv = 14.08 (+-0.07), 169x256 L, Dilli. (HI)

Dec. 08.465: mv = 14.24 (+-0.07), 169x256 L, Dilli. (HI)

Dec. 14.566: mv = 14.17 (+-0.07), 169x256 L, Dilli. (HI)

Dec. 16.486: mv = 14.28 (+-0.06), 169x256 L, Dilli. (HI)

Dec. 29.312: mv = 14.24 (+-0.06), 169x256 L, Dilli. (HI)

Dec. 30.240: mv = 14.18 (+-0.04), 169x256 L, Dilli. (HI)

2000:

Jan. 07.292: mv = 14.19 (+-0.09), 169x256 L, Dilli. (HI)

Jan. 12.250: mv = 14.37 (+-0.05), 169x256 L, Dilli. (HI)

Jan. 23.271: mv = 14.48 (+-0.10), 169x256 L, Dilli. (HI)

Jan. 25.306: mv = 14.63 (+-0.11), 169x256 L, Dilli. (HI)

Jan. 29.299: mv = 14.78 (+-0.10), 169x256 L, Dilli. (HI)

Feb. 05.344: mv = 14.77 (+-0.07), 169x256 L, Dilli. (HI)

Feb. 23.296: mv = 15.13:(+-0.06), 169x256 L, Dilli. (HI)

Supernova 1999cw in MCG-01-02-001

July 11.60: mv = 14.41 (+-0.07), 169x256 L, Dilli. (HI)

Supernova 1999cp in NGC5468

July 01.36: mv = 13.94 (+-0.20), 169x256 L, Dilli. (HI) (+ Moon)

July 03.30: mv = 13.69 (+-0.13), 169x256 L, Dilli. (HI)

July 04.30: mv = 13.83 (+-0.06), 169x256 L, Dilli. (HI)

July 10.36: mv = 14 (+-0.1), 169x256 L, Dilli. (HI)

July 11.31: mv = 13.94 (+-0.09), 169x256 L, Dilli. (HI)

Supernova 1999cl in M88

June 13.33: mv = 14.33 (+-0.09), 169x256 L, Dilli. (HI)

June 14.41: mv = 14.36 (+-0.08), 169x256 L, Dilli. (HI)

June 17.35: mv = 14.27 (+-0.10), 169x256 L, Dilli. (HI)

July 02.29: mv = 14.75 (+-0.06), 169x256 L, Dilli. (HI)

July 03.30: mv = 14.94 (+-0.10), 169x256 L, Dilli. (HI)

July 04.29: mv = 15.08 (+-0.08), 169x256 L, Dilli. (HI)

Supernova 1999by in NGC 2841

May. 09.33: mv = 13.70 (+-0.06), 169x256 L, Dilli. (HI)

May. 11.40: mv = 13.55 (+-0.11), 169x256 L, Dilli. (HI)

May. 15.32: mv = 13.61 (+-0.07), 169x256 L, Dilli. (HI)

May. 19.35: mv = 13.91 (+-0.11), 169x256 L, Dilli. (HI)

June 12.30: mv = 14.92 (+-0.08), 169x256 L, Dilli. (HI)

June 13.31: mv = 15.08 (+-0.07), 169x256 L, Dilli. (HI)

1998:

Supernova 1998S in NGC 3877

15'x8.5' drawing 169x256 with location of SN1998S

Same image of NGC3877, (15x14' FOV)

Mar. 08.59: mv = 12.7 (+-0.2), 169x256 L, Koko-H. (HI)

Mar. 09.61: mv = 12.7 (+-0.2), 169x256 L, Koko-H. (HI)

Mar. 11.48: mv = 12.3 (+-0.2), 169x256 L, 84x256 L, Honolu. (HI) + Moon

Mar. 13.40: mv = 12.1 (+-0.1), 169x256 L, 84x256 L, Honolu. (HI) +F.Moon

Mar. 15.26: mv = 12.0+(+-0.1), 169x256 L, 84x256 L, Koko-H. (HI)

Mar. 16.30: mv = 11.9 (+-0.1), 169x256 L, 84x256 L, Silva (HI)

Mar. 17.32: mv = 12.0 (+-0.1), 169x256 L, 84x256 L, Honolu. (HI)

Mar. 18.36: mv = 11.9 (+-0.1), 169x256 L, 84x256 L, Silva (HI)

Mar. 20.32: mv = 11.8 (+-0.1), 169x256 L, 84x256 L, Koko-H. (HI)

Mar. 21.38: mv = 11.8 (+-0.1), 169x256 L, 84x256 L, Honolu. (HI)

Mar. 22.35: mv = 12.0 (+-0.1), 130x355 SCT, Hale-Pohaku (HI)

Apr. 19.33: mv = 13.2 (+-0.1), 169x256 L, Honolu. (HI)

Apr. 21.27: mv = 13.2 (+-0.1), 169x256 L, Koko-H. (HI)

Apr. 25.29: mv = 13.3 (+-0.1), 169x256 L, Silva (HI)

Apr. 26.33: mv = 13.4 (+-0.1), 169x256 L, Dilli. (HI)

Apr. 27.31: mv = 13.2 (+-0.1), 169x256 L, Koko-H. (HI)

Apr. 29.29: mv = 13.5 (+-0.1), 169x256 L, Honol. (HI)

May 02.44: mv = 13.6 (+-0.1), 169x256 L, Dilli. (HI)

May 03.29: mv = 13.6 (+-0.1), 169x256 L, Honol. (HI) (+ Moon)

May 13.27: mv = 14.3 (+-0.1), 169x256 L, Kahe-P. (HI)

May 15.28: mv = 14.4 (+-0.1), 169x256 L, Kahe-P. (HI)

May 16.28: mv = 14.5 (+-0.1), 169x256 L, Makaha (HI)

May 19.29: mv = 14.7 (+-0.1), 169x256 L, Kahe-P. (HI)

May 20.30: mv = 14.7 (+-0.1), 169x256 L, Silva (HI)

May 22.28: mv = 14.8 (+-0.1), 169x256 L, Kahe-P. (HI)

May 23.33: mv = 14.9 (+-0.1), 169x256 L, Silva (HI)

May 25.27: mv = 14.9 (+-0.1), 169x256 L, Dilli. (HI)

May 26.36: mv = 15.0 (+-0.1), 169x256 L, Dilli. (HI)

May 30.40: mv = 15.1 (+-0.2), 169x256 L, Dilli. (HI)

(ref. stars: GSC3452-1170, -1061, -905, -1079 (TI)...)

Comments:

I was surprised to see SN 1998S so easily this night (Mar. 8.6)! It makes a nice 6' diamond with 3 other stars, the two eastern-most being of similar brightness (ref. stars used). May 30.3: Very last and marginal observation of the Supernova (under good skies): the visual limit of my telescope is mv=15.2 in good conditions.

Complete light curve

Supernova 1998aq in NGC 3982

NGC 3982 and SN 1998aq

Apr. 21.29: mv = 12.7 (+-0.1), 169x256 L, Koko-H. (HI)

Apr. 25.26: mv = 12.5 (+-0.1), 169x256 L, Silva (HI)

Apr. 26.31: mv = 12.3 (+-0.1), 169x256 L, Dilli. (HI)

Apr. 27.32: mv = 12.3 (+-0.1), 169x256 L, Koko-H. (HI)

Apr. 29.28: mv = 12.2 (+-0.1), 169x256 L, Honol. (HI)

May 02.44: mv = 12.0 (+-0.2), 169x256 L, Dilli. (HI)

May 03.28: mv = 12.3 (+-0.1), 169x256 L, Honol. (HI) (+ Moon)

May 11.28: mv = 12.9 (+-0.1), 169x256 L, Kahe-P. (HI) (+ Full Moon)

May 13.28: mv = 13.0 (+-0.1), 169x256 L, Kahe-P. (HI)

May 15.28: mv = 13.0 (+-0.1), 169x256 L, Kahe-P. (HI)

May 16.31: mv = 13.1 (+-0.1), 169x256 L, Makaha (HI)

May 17.29: mv = 13.1 (+-0.1), 169x256 L, Kahe-P. (HI)

May 19.29: mv = 13.1 (+-0.1), 169x256 L, Kahe-P. (HI)

May 22.27: mv = 13.4 (+-0.1), 169x256 L, Kahe-P. (HI

May 23.34: mv = 13.4 (+-0.1), 169x256 L, Silva (HI)

May 25.31: mv = 13.5 (+-0.1), 169x256 L, Dilli. (HI)

May 26.38: mv = 13.5 (+-0.1), 169x256 L, Dilli. (HI)

May 30.40: mv = 13.8 (+-0.1), 169x256 L, Dilli. (HI)

May 31.45: mv = 13.8 (+-0.1), 169x256 L, Dilli. (HI)

June 12.27: mv = 14.6 (+-0.2), 169x256 L, Kahe-P. (HI)

June 14.27: mv = 14.7 (+-0.1), 169x256 L, Dilli. (HI)

June 15.29: mv = 14.7 (+-0.1), 169x256 L, Koko-H. (HI)

June 17.36: mv = 14.7 (+-0.1), 169x256 L, Silva (HI)

June 20.30: mv = 14.8 (+-0.1), 169x256 L, Silva (HI)

June 21.35: mv = 15.0 (+-0.2), 169x256 L, Dilli. (HI)

(ref. stars: GSC3836-19, -188, -20, -73, -98, -79)

Comments:

Once more a relatively bright supernova as I observe it for my first time! SN 1998S is too faint, this one (1998aq) is also fading... switch to 1998bu!

Supernova 1998bn in NGC 4462

NGC 4462 and SN 1998bn

Apr. 28.34: mv = 13.3 (+-0.1), 169x256 L, Honol. (HI)

Apr. 29.34: mv = 13.2 (+-0.1), 169x256 L, Honol. (HI)

Apr. 30.33: mv = 13.1 (+-0.1), 169x256 L, Honol. (HI)

May 02.42: mv = 13.1 (+-0.1), 169x256 L, Dilli. (HI)

May 10.34: mv = 14.1:(+-0.2), 169x256 L, Honol. (HI) + moon

May 13.26: mv = 13.9 (+-0.1), 169x256 L, Kahe-P.(HI)

May 15.28: mv = 13.9 (+-0.1), 169x256 L, Kahe-P.(HI)

May 16.28: mv = 14.0 (+-0.1), 169x256 L, Makaha (HI)

May 17.28: mv = 14.0 (+-0.1), 169x256 L, Kahe-P.(HI)

May 18.27: mv = 14.1 (+-0.1), 169x256 L, Kahe-P.(HI)

May 19.30: mv = 14.2 (+-0.1), 169x256 L, Kahe-P.(HI)

May 22.28: mv = 14.5 (+-0.1), 169x256 L, Kahe-P.(HI)

May 23.32: mv = 14.5 (+-0.1), 169x256 L, Silva (HI)

May 25.30: mv = 14.6 (+-0.1), 169x256 L, Dilli. (HI)

May 26.35: mv = 14.7 (+-0.1), 169x256 L, Dilli. (HI)

May 30.39: mv = 14.9 (+-0.2), 169x256 L, Dilli. (HI)

(New magnitude references (photometry of GSC stars from VSNET))

Comments:

Another supernova (clearly but faintly) visible from Honolulu! Magnitudes of GSC stars have to be decreased by 0.6 mag., which is the average offset from field TYCHO stars. May 31.4: with the help of the coming moon, the supernova is now too faint (and was not unambiguously seen this night).

Complete light curve

Supernova 1998bu in M96

M96 and SN 1998bu

May 11.26: mv = 12.2 (+-0.1), 169x256 L, Kahe-P. (HI)

May 13.29: mv = 12.2 (+-0.1), 169x256 L, Kahe-P. (HI)

May 15.29: mv = 12.1 (+-0.1), 169x256 L, Kahe-P. (HI)

May 16.32: mv = 12.1 (+-0.1), 169x256 L, Makaha (HI)

May 17.30: mv = 11.9 (+-0.1), 84x256 L, Kahe-P. (HI)

May 19.31: mv = 11.8 (+-0.1), 84x256 L, Kahe-P. (HI)

May 22.28: mv = 11.8 (+-0.1), 84x256 L, Kahe-P. (HI)

May 23.37: mv = 11.8 (+-0.1), 84x256 L, Silva (HI)

May 24.39: mv = 11.7 (+-0.1), 84x256 L, Dilli. (HI)

May 25.32: mv = 11.8 (+-0.1), 84x256 L, Dilli. (HI)

May 26.38: mv = 11.8 (+-0.1), 84x256 L, Dilli. (HI)

May 28.34: mv = 12.0 (+-0.1), 84x256 L, Honolu. (HI)

May 30.39: mv = 12.0 (+-0.1), 84x256 L, Dilli. (HI)

June 2.33: mv = 12.2 (+-0.1), 84x256 L, Honolu. (HI) + Moon nearby(5°)

June 4.32: mv = 12.3 (+-0.1), 84x256 L, Honolu. (HI) + Moon

June 6.33: mv = 12.2 (+-0.1), 84x256 L, Honolu. (HI) (Waialae) + Moon

June 7.26: mv = 12.2 (+-0.1), 84x256 L, Kahe-P. (HI) (+ Moon)

June 11.31: mv = 12.6 (+-0.1), 84x256 L, Honolu. (HI) (+ Moon)

June 12.29: mv = 12.8 (+-0.1), 84x256 L, Kahe-P. (HI)

June 14.27: mv = 12.9 (+-0.1), 84x256 L, Dilli. (HI)

June 15.30: mv = 13.0 (+-0.1), 169x256 L, Koko-H. (HI)

June 17.33: mv = 13.1 (+-0.1), 169x256 L, Silva (HI)

June 19.31: mv = 13.3 (+-0.2), 169x256 L, Koko-H. (HI)

June 20.30: mv = 13.6 (+-0.2), 169x256 L, Silva (HI)

June 21.33: mv = 13.8 (+-0.1), 169x256 L, Dilli. (HI)

June 25.29: mv = 14.0 (+-0.1), 169x256 L, Dilli. (HI)

June 28.31: mv = 14.2 (+-0.2), 169x256 L, Pearl City (HI) + Moon

June 30.29: mv = 14.3 (+-0.1), 169x256 L, Dilli. (HI) + Moon nearby(10°)

July 12.28: mv = 14.7 (+-0.2), 169x256 L, Kahe-P. (HI) (hazy)

July 25.28: mv > 14.5, 169x256 L, Silva (HI) (low)

July 26.27: mv = 14.9 (+-0.3), 169x256 L, Dilli. (HI) (low)

Comments:

It has been fading quite fast between June 7 and 21...

Supernova 1998dh in NGC7541

July 26.48: mv = 14.4 (+-0.1), 169x256 L, Dilli. (HI)

July 27.49: mv = 14.2 (+-0.1), 169x256 L, Koko-H.(HI)

July 30.48: mv = 14.1 (+-0.1), 169x256 L, Dilli. (HI)

Aug. 02.53: mv = 13.9 (+-0.1), 169x256 L, Koko-H.(HI)

Aug. 04.55: mv = 13.8 (+-0.1), 169x256 L, Koko-H.(HI)

Aug. 12.34: mv = 13.6 (+-0.1), 169x256 L, Koko-H.(HI)

Aug. 13.36: mv = 13.6 (+-0.1), 169x256 L, Koko-H.(HI)

Aug. 15.39: mv = 13.9 (+-0.1), 169x256 L, Dilli. (HI)

Aug. 16.43: mv = 14.1 (+-0.1), 169x256 L, Dilli. (HI)

Aug. 19.37: mv = 14.2 (+-0.1), 169x256 L, Koko-H.(HI)

Aug. 20.38: mv = 14.3 (+-0.1), 169x256 L, Dilli. (HI)

Aug. 24.44: mv = 14.5 (+-0.1), 169x256 L, Dilli. (HI)

Aug. 28.42: mv = 14.8 (+-0.1), 169x256 L, Dilli. (HI)

Comments:

Visible for a little more than a month.

Back to Nicolas Biver's Home Page	Send comments
* observations in progress... *	Nicolas Biver - 17 February 2000

NOVAE

Nova Aquila (AqlV1494) 1999 n°2

Nova Velorum (VelV382) 1999

SUPERNOVAE

Supernova 2003gd in M74

Supernova 2002ap in M74

Supernova 2000E in NGC6951

Supernova 1999el in NGC6951

Supernova 1999gi in NGC3184

Supernova 1999em in NGC1637

Supernova 1999cw in MCG-01-02-001

Supernova 1999cp in NGC5468

Supernova 1999cl in M88

Supernova 1999by in NGC 2841

Supernova 1998S in NGC 3877

Supernova 1998aq in NGC 3982

Supernova 1998bn in NGC 4462

Supernova 1998bu in M96

Supernova 1998dh in NGC7541

Nova Aquila (AqlV1494) 1999 n°2