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SN 2020udy

Right ascension (α)
31.70562500 Degree
Declination (δ)
44.58758056 Degree
Distance (d)
57.26000000 Megaparsec ± 11.13000000 Megaparsec
Recession velocity (vrec)
5106 Kilometres per second Virgo infall + Great Attractor corrected
Redshift (z)
0.01703178
Photometry
Yes · 360 points
Spectra
1 spectrum

Measurements

Each column groups the values reported together by one source entry. Empty cells mean that source did not report that property.

Property Singh et al. (2024) Maguire et al. (2023) Magee et al. (2025)
Milky Way reddening (E(B−V)MW) 0.06700000 Magnitude 0.06700000 Magnitude N/A
Absolute peak magnitude — B band (MB) Johnson filter system -17.34342072 Magnitude ± 0.42255684 Magnitude N/A N/A
Absolute peak magnitude — r band (Mr) Sloan filter system -17.78372472 Magnitude ± 0.42314807 Magnitude -17.99372472 Magnitude ± 0.74179127 Magnitude -18.43000000 Magnitude ± 0.15000000 Magnitude
Absolute peak magnitude — V band (MV) Johnson filter system -17.59695672 Magnitude ± 0.42220171 Magnitude N/A N/A
Apparent peak magnitude — B band (mB) Johnson filter system 16.72000000 Magnitude ± 0.02000000 Magnitude N/A N/A
Apparent peak magnitude — r band (mr) Sloan filter system 16.18000000 Magnitude ± 0.03000000 Magnitude 15.97000000 Magnitude ± 0.61000000 Magnitude N/A
Apparent peak magnitude — V band (mV) Johnson filter system 16.40000000 Magnitude ± 0.01000000 Magnitude N/A N/A
Decline over 15 days — B band (Δm15(B)) Johnson filter system 1.36000000 Magnitude N/A N/A
Decline over 15 days — r band (Δm15(r)) Sloan filter system 0.49000000 Magnitude N/A N/A
Decline over 15 days — V band (Δm15(V)) Johnson filter system 0.45000000 Magnitude N/A N/A
Explosion time (texp) 59115.70000000 Day N/A 59115.42000000 Day
Ejecta mass (Mej) 1.39000000 Solar mass N/A N/A
Nickel mass (MNi) 0.08000000 Solar mass N/A N/A
Peak bolometric luminosity (Lbol) 2.06000000 10^42 erg per second N/A N/A
Rise time (trise) N/A N/A 20.80000000 Day
Photometric blueshift (vph) -8000 Kilometres per second N/A N/A
TARDIS model velocity (vTARDIS) 8600 Kilometres per second N/A N/A

Light curve

Observed magnitude by reported observation time. Axis labels identify the displayed time and magnitude systems; brighter measurements appear at the top.

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Spectrum

Compare up to 10 selected full-resolution observed spectra on one chart. Raw flux is shown by default; normalization is an explicit display option.

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Move across the chart to inspect the nearest point in each selected spectrum.
Flux display Normalization divides each spectrum by its maximum absolute reported flux.